#define PLUGIN_NAME "turbostat"
-static const char *proc_stat = "/proc/stat";
-static unsigned int skip_c0;
-static unsigned int skip_c1;
+/*
+ * This tool uses the Model-Specific Registers (MSRs) present on Intel processors.
+ * The general description each of these registers, depending on the architecture,
+ * can be found in the Intel® 64 and IA-32 Architectures Software Developer Manual,
+ * Volume 3 Chapter 35.
+ */
+
+/*
+ * If set, aperf_mperf_unstable disables a/mperf based stats.
+ * This includes: C0 & C1 states, frequency
+ *
+ * This value is automatically set if mperf or aperf go backward
+ */
+static _Bool aperf_mperf_unstable;
+
+/*
+ * Bitmask of the list of core C states supported by the processor.
+ * Currently supported C-states (by this plugin): 3, 6, 7
+ */
static unsigned int do_core_cstate;
+
+/*
+ * Bitmask of the list of pacages C states supported by the processor.
+ * Currently supported C-states (by this plugin): 2, 3, 6, 7, 8, 9, 10
+ */
static unsigned int do_pkg_cstate;
-static unsigned int do_rapl;
-static unsigned int do_dts;
-static unsigned int do_ptm;
+
+/*
+ * Boolean indicating if the processor supports 'Digital temperature sensor'
+ * This feature enables the monitoring of the temperature of each core
+ *
+ * This feature has two limitations:
+ * - if MSR_IA32_TEMPERATURE_TARGET is not supported, the absolute temperature might be wrong
+ * - Temperatures above the tcc_activation_temp are not recorded
+ */
+static _Bool do_dts;
+
+/*
+ * Boolean indicating if the processor supports 'Package thermal management'
+ * This feature allows the monitoring of the temperature of each package
+ *
+ * This feature has two limitations:
+ * - if MSR_IA32_TEMPERATURE_TARGET is not supported, the absolute temperature might be wrong
+ * - Temperatures above the tcc_activation_temp are not recorded
+ */
+static _Bool do_ptm;
+
+/*
+ * Thermal Control Circuit Activation Temperature as configured by the user.
+ * This override the automated detection via MSR_IA32_TEMPERATURE_TARGET
+ * and should only be used if the automated detection fails.
+ */
static unsigned int tcc_activation_temp;
-static unsigned int tcc_activation_temp_override;
+
+static unsigned int do_rapl;
static double rapl_energy_units;
#define RAPL_PKG (1 << 0)
/* 0x642 MSR_PP1_POLICY */
#define TJMAX_DEFAULT 100
-int aperf_mperf_unstable;
-int backwards_count;
-
-cpu_set_t *cpu_present_set, *cpu_affinity_set;
-size_t cpu_present_setsize, cpu_affinity_setsize;
+cpu_set_t *cpu_present_set, *cpu_affinity_set, *cpu_saved_affinity_set;
+size_t cpu_present_setsize, cpu_affinity_setsize, cpu_saved_affinity_setsize;
struct thread_data {
unsigned long long tsc;
unsigned int flags;
#define CPU_IS_FIRST_THREAD_IN_CORE 0x2
#define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4
-} *thread_even, *thread_odd;
+} *thread_delta, *thread_even, *thread_odd;
struct core_data {
unsigned long long c3;
unsigned long long c7;
unsigned int core_temp_c;
unsigned int core_id;
-} *core_even, *core_odd;
+} *core_delta, *core_even, *core_odd;
struct pkg_data {
unsigned long long pc2;
unsigned int energy_gfx; /* MSR_PP1_ENERGY_STATUS */
unsigned int rapl_pkg_perf_status; /* MSR_PKG_PERF_STATUS */
unsigned int rapl_dram_perf_status; /* MSR_DRAM_PERF_STATUS */
+ unsigned int tcc_activation_temp;
unsigned int pkg_temp_c;
+} *package_delta, *package_even, *package_odd;
-} *package_even, *package_odd;
-
+#define DELTA_COUNTERS thread_delta, core_delta, package_delta
#define ODD_COUNTERS thread_odd, core_odd, package_odd
#define EVEN_COUNTERS thread_even, core_even, package_even
static _Bool is_even = 1;
enum return_values {
OK = 0,
ERR_CPU_MIGRATE,
+ ERR_CPU_SAVE_SCHED_AFFINITY,
ERR_MSR_IA32_APERF,
ERR_MSR_IA32_MPERF,
ERR_MSR_SMI_COUNT,
UNSUPPORTED_CPU,
};
-static int setup_all_buffers(void);
-static int
-cpu_is_not_present(int cpu)
-{
- return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set);
-}
+/*****************************
+ * MSR Manipulation helpers *
+ *****************************/
+
/*
- * run func(thread, core, package) in topology order
- * skip non-present cpus
+ * Open a MSR device for reading
+ * Can change the scheduling affinity of the current process if multiple_read is 1
*/
-
static int __attribute__((warn_unused_result))
-for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *),
- struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base)
-{
- int retval, pkg_no, core_no, thread_no;
-
- for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
- for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
- for (thread_no = 0; thread_no <
- topo.num_threads_per_core; ++thread_no) {
- struct thread_data *t;
- struct core_data *c;
- struct pkg_data *p;
-
- t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
-
- if (cpu_is_not_present(t->cpu_id))
- continue;
-
- c = GET_CORE(core_base, core_no, pkg_no);
- p = GET_PKG(pkg_base, pkg_no);
-
- retval = func(t, c, p);
- if (retval)
- return retval;
- }
- }
- }
- return 0;
-}
-
-static int __attribute__((warn_unused_result))
-cpu_migrate(int cpu)
-{
- CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
- CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set);
- if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1)
- return -ERR_CPU_MIGRATE;
- else
- return 0;
-}
-
-static int __attribute__((warn_unused_result))
-open_msr(int cpu)
+open_msr(int cpu, _Bool multiple_read)
{
char pathname[32];
int fd;
- /* FIXME: Do we really need this, why? */
- if (cpu_migrate(cpu)) {
- ERROR("Could not migrate to CPU %d", cpu);
- return -ERR_CPU_MIGRATE;
+ /*
+ * If we need to do multiple read, let's migrate to the CPU
+ * Otherwise, we would lose time calling functions on another CPU
+ *
+ * If we are not yet initialized (cpu_affinity_setsize = 0),
+ * we need to skip this optimisation.
+ */
+ if (multiple_read && cpu_affinity_setsize) {
+ CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
+ CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set);
+ if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1) {
+ ERROR("Could not migrate to CPU %d", cpu);
+ return -ERR_CPU_MIGRATE;
+ }
}
ssnprintf(pathname, sizeof(pathname), "/dev/cpu/%d/msr", cpu);
return fd;
}
+/*
+ * Read a single MSR from an open file descriptor
+ */
static int __attribute__((warn_unused_result))
read_msr(int fd, off_t offset, unsigned long long *msr)
{
return 0;
}
+/*
+ * Open a MSR device for reading, read the value asked for and close it.
+ * This call will not affect the scheduling affinity of this thread.
+ */
static int __attribute__((warn_unused_result))
get_msr(int cpu, off_t offset, unsigned long long *msr)
{
ssize_t retval;
int fd;
- fd = open_msr(cpu);
+ fd = open_msr(cpu, 0);
if (fd < 0)
return fd;
retval = read_msr(fd, offset, msr);
return retval;
}
-#define DELTA_WRAP32(new, old) \
- if (new > old) { \
- old = new - old; \
- } else { \
- old = 0x100000000 + new - old; \
+
+/********************************
+ * Raw data acquisition (1 CPU) *
+ ********************************/
+
+/*
+ * Read every data avalaible for a single CPU
+ *
+ * Core data is shared for all threads in one core: extracted only for the first thread
+ * Package data is shared for all core in one package: extracted only for the first thread of the first core
+ *
+ * Side effect: migrates to the targeted CPU
+ */
+static int __attribute__((warn_unused_result))
+get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
+{
+ int cpu = t->cpu_id;
+ unsigned long long msr;
+ int msr_fd;
+ int retval = 0;
+
+ msr_fd = open_msr(cpu, 1);
+ if (msr_fd < 0)
+ return msr_fd;
+
+#define READ_MSR(msr, dst) \
+do { \
+ if (read_msr(msr_fd, msr, dst)) { \
+ retval = -ERR_##msr; \
+ goto out; \
+ } \
+} while (0)
+
+ READ_MSR(MSR_IA32_TSC, &t->tsc);
+
+ READ_MSR(MSR_IA32_APERF, &t->aperf);
+ READ_MSR(MSR_IA32_MPERF, &t->mperf);
+
+ READ_MSR(MSR_SMI_COUNT, &msr);
+ t->smi_count = msr & 0xFFFFFFFF;
+
+ /* collect core counters only for 1st thread in core */
+ if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) {
+ retval = 0;
+ goto out;
}
-static void
-delta_package(struct pkg_data *new, struct pkg_data *old)
+ if (do_core_cstate & (1 << 3))
+ READ_MSR(MSR_CORE_C3_RESIDENCY, &c->c3);
+ if (do_core_cstate & (1 << 6))
+ READ_MSR(MSR_CORE_C6_RESIDENCY, &c->c6);
+ if (do_core_cstate & (1 << 7))
+ READ_MSR(MSR_CORE_C7_RESIDENCY, &c->c7);
+
+ if (do_dts) {
+ READ_MSR(MSR_IA32_THERM_STATUS, &msr);
+ c->core_temp_c = p->tcc_activation_temp - ((msr >> 16) & 0x7F);
+ }
+
+ /* collect package counters only for 1st core in package */
+ if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) {
+ retval = 0;
+ goto out;
+ }
+
+ if (do_pkg_cstate & (1 << 2))
+ READ_MSR(MSR_PKG_C2_RESIDENCY, &p->pc2);
+ if (do_pkg_cstate & (1 << 3))
+ READ_MSR(MSR_PKG_C3_RESIDENCY, &p->pc3);
+ if (do_pkg_cstate & (1 << 6))
+ READ_MSR(MSR_PKG_C6_RESIDENCY, &p->pc6);
+ if (do_pkg_cstate & (1 << 7))
+ READ_MSR(MSR_PKG_C7_RESIDENCY, &p->pc7);
+ if (do_pkg_cstate & (1 << 8))
+ READ_MSR(MSR_PKG_C8_RESIDENCY, &p->pc8);
+ if (do_pkg_cstate & (1 << 9))
+ READ_MSR(MSR_PKG_C9_RESIDENCY, &p->pc9);
+ if (do_pkg_cstate & (1 << 10))
+ READ_MSR(MSR_PKG_C10_RESIDENCY, &p->pc10);
+
+ if (do_rapl & RAPL_PKG) {
+ READ_MSR(MSR_PKG_ENERGY_STATUS, &msr);
+ p->energy_pkg = msr & 0xFFFFFFFF;
+ }
+ if (do_rapl & RAPL_CORES) {
+ READ_MSR(MSR_PP0_ENERGY_STATUS, &msr);
+ p->energy_cores = msr & 0xFFFFFFFF;
+ }
+ if (do_rapl & RAPL_DRAM) {
+ READ_MSR(MSR_DRAM_ENERGY_STATUS, &msr);
+ p->energy_dram = msr & 0xFFFFFFFF;
+ }
+ if (do_rapl & RAPL_GFX) {
+ READ_MSR(MSR_PP1_ENERGY_STATUS, &msr);
+ p->energy_gfx = msr & 0xFFFFFFFF;
+ }
+ if (do_rapl & RAPL_PKG_PERF_STATUS) {
+ READ_MSR(MSR_PKG_PERF_STATUS, &msr);
+ p->rapl_pkg_perf_status = msr & 0xFFFFFFFF;
+ }
+ if (do_rapl & RAPL_DRAM_PERF_STATUS) {
+ READ_MSR(MSR_DRAM_PERF_STATUS, &msr);
+ p->rapl_dram_perf_status = msr & 0xFFFFFFFF;
+ }
+ if (do_ptm) {
+ READ_MSR(MSR_IA32_PACKAGE_THERM_STATUS, &msr);
+ p->pkg_temp_c = p->tcc_activation_temp - ((msr >> 16) & 0x7F);
+ }
+
+out:
+ close(msr_fd);
+ return retval;
+}
+
+
+/**********************************
+ * Evaluating the changes (1 CPU) *
+ **********************************/
+
+/*
+ * Do delta = new - old on 32bits cyclique intergers
+ */
+#define DELTA_WRAP32(delta, new, old) \
+ if (new > old) { \
+ delta = new - old; \
+ } else { \
+ delta = 0x100000000 + new - old; \
+ }
+
+/*
+ * Extract the evolution old->new in delta at a package level
+ * (some are not new-delta, e.g. temperature)
+ */
+static inline void
+delta_package(struct pkg_data *delta, const struct pkg_data *new, const struct pkg_data *old)
{
- old->pc2 = new->pc2 - old->pc2;
- old->pc3 = new->pc3 - old->pc3;
- old->pc6 = new->pc6 - old->pc6;
- old->pc7 = new->pc7 - old->pc7;
- old->pc8 = new->pc8 - old->pc8;
- old->pc9 = new->pc9 - old->pc9;
- old->pc10 = new->pc10 - old->pc10;
- old->pkg_temp_c = new->pkg_temp_c;
-
- DELTA_WRAP32(new->energy_pkg, old->energy_pkg);
- DELTA_WRAP32(new->energy_cores, old->energy_cores);
- DELTA_WRAP32(new->energy_gfx, old->energy_gfx);
- DELTA_WRAP32(new->energy_dram, old->energy_dram);
- DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status);
- DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status);
+ delta->pc2 = new->pc2 - old->pc2;
+ delta->pc3 = new->pc3 - old->pc3;
+ delta->pc6 = new->pc6 - old->pc6;
+ delta->pc7 = new->pc7 - old->pc7;
+ delta->pc8 = new->pc8 - old->pc8;
+ delta->pc9 = new->pc9 - old->pc9;
+ delta->pc10 = new->pc10 - old->pc10;
+ delta->pkg_temp_c = new->pkg_temp_c;
+
+ DELTA_WRAP32(delta->energy_pkg, new->energy_pkg, old->energy_pkg);
+ DELTA_WRAP32(delta->energy_cores, new->energy_cores, old->energy_cores);
+ DELTA_WRAP32(delta->energy_gfx, new->energy_gfx, old->energy_gfx);
+ DELTA_WRAP32(delta->energy_dram, new->energy_dram, old->energy_dram);
+ DELTA_WRAP32(delta->rapl_pkg_perf_status, new->rapl_pkg_perf_status, old->rapl_pkg_perf_status);
+ DELTA_WRAP32(delta->rapl_dram_perf_status, new->rapl_dram_perf_status, old->rapl_dram_perf_status);
}
-static void
-delta_core(struct core_data *new, struct core_data *old)
+/*
+ * Extract the evolution old->new in delta at a core level
+ * (some are not new-delta, e.g. temperature)
+ */
+static inline void
+delta_core(struct core_data *delta, const struct core_data *new, const struct core_data *old)
{
- old->c3 = new->c3 - old->c3;
- old->c6 = new->c6 - old->c6;
- old->c7 = new->c7 - old->c7;
- old->core_temp_c = new->core_temp_c;
+ delta->c3 = new->c3 - old->c3;
+ delta->c6 = new->c6 - old->c6;
+ delta->c7 = new->c7 - old->c7;
+ delta->core_temp_c = new->core_temp_c;
}
/*
- * old = new - old
+ * Extract the evolution old->new in delta at a package level
+ * core_delta is required for c1 estimation (tsc - c0 - all core cstates)
*/
-static int __attribute__((warn_unused_result))
-delta_thread(struct thread_data *new, struct thread_data *old,
- struct core_data *core_delta)
+static inline int __attribute__((warn_unused_result))
+delta_thread(struct thread_data *delta, const struct thread_data *new, const struct thread_data *old,
+ const struct core_data *core_delta)
{
- old->tsc = new->tsc - old->tsc;
+ delta->tsc = new->tsc - old->tsc;
/* check for TSC < 1 Mcycles over interval */
- if (old->tsc < (1000 * 1000)) {
+ if (delta->tsc < (1000 * 1000)) {
WARNING("Insanely slow TSC rate, TSC stops in idle? ");
WARNING("You can disable all c-states by booting with \"idle=poll\" ");
WARNING("or just the deep ones with \"processor.max_cstate=1\"");
return -1;
}
- old->c1 = new->c1 - old->c1;
+ delta->c1 = new->c1 - old->c1;
if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) {
- old->aperf = new->aperf - old->aperf;
- old->mperf = new->mperf - old->mperf;
+ delta->aperf = new->aperf - old->aperf;
+ delta->mperf = new->mperf - old->mperf;
} else {
-
if (!aperf_mperf_unstable) {
WARNING(" APERF or MPERF went backwards * ");
WARNING("* Frequency results do not cover entire interval *");
aperf_mperf_unstable = 1;
}
- /*
- * mperf delta is likely a huge "positive" number
- * can not use it for calculating c0 time
- */
- skip_c0 = 1;
- skip_c1 = 1;
}
-
/*
* As counter collection is not atomic,
* it is possible for mperf's non-halted cycles + idle states
* to exceed TSC's all cycles: show c1 = 0% in that case.
*/
- if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
- old->c1 = 0;
+ if ((delta->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > delta->tsc)
+ delta->c1 = 0;
else {
/* normal case, derive c1 */
- old->c1 = old->tsc - old->mperf - core_delta->c3
+ delta->c1 = delta->tsc - delta->mperf - core_delta->c3
- core_delta->c6 - core_delta->c7;
}
- if (old->mperf == 0) {
+ if (delta->mperf == 0) {
WARNING("cpu%d MPERF 0!", old->cpu_id);
- old->mperf = 1; /* divide by 0 protection */
+ delta->mperf = 1; /* divide by 0 protection */
}
- old->smi_count = new->smi_count - old->smi_count;
+ delta->smi_count = new->smi_count - old->smi_count;
+
+ return 0;
+}
+
+/**********************************
+ * Submitting the results (1 CPU) *
+ **********************************/
+
+/*
+ * Submit one gauge value
+ */
+static void
+turbostat_submit (const char *plugin_instance,
+ const char *type, const char *type_instance,
+ gauge_t value)
+{
+ value_list_t vl = VALUE_LIST_INIT;
+ value_t v;
+
+ v.gauge = value;
+ vl.values = &v;
+ vl.values_len = 1;
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, PLUGIN_NAME, sizeof (vl.plugin));
+ if (plugin_instance != NULL)
+ sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
+ sstrncpy (vl.type, type, sizeof (vl.type));
+ if (type_instance != NULL)
+ sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
+
+ plugin_dispatch_values (&vl);
+}
+
+/*
+ * Submit every data for a single CPU
+ *
+ * Core data is shared for all threads in one core: submitted only for the first thread
+ * Package data is shared for all core in one package: submitted only for the first thread of the first core
+ */
+static int
+submit_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
+{
+ char name[12];
+ double interval_float;
+
+ interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;
+
+ ssnprintf(name, sizeof(name), "cpu%02d", t->cpu_id);
+
+ if (!aperf_mperf_unstable)
+ turbostat_submit(name, "percent", "c0", 100.0 * t->mperf/t->tsc);
+ if (!aperf_mperf_unstable)
+ turbostat_submit(name, "percent", "c1", 100.0 * t->c1/t->tsc);
+
+ /* GHz */
+ if ((!aperf_mperf_unstable) || (!(t->aperf > t->tsc || t->mperf > t->tsc)))
+ turbostat_submit(NULL, "frequency", name, 1.0 * t->tsc / 1000000000 * t->aperf / t->mperf / interval_float);
+
+ /* SMI */
+ turbostat_submit(NULL, "current", name, t->smi_count);
+
+ /* submit per-core data only for 1st thread in core */
+ if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
+ goto done;
+
+ ssnprintf(name, sizeof(name), "core%02d", c->core_id);
+
+ if (do_core_cstate & (1 << 3))
+ turbostat_submit(name, "percent", "c3", 100.0 * c->c3/t->tsc);
+ if (do_core_cstate & (1 << 6))
+ turbostat_submit(name, "percent", "c6", 100.0 * c->c6/t->tsc);
+ if (do_core_cstate & (1 << 7))
+ turbostat_submit(name, "percent", "c7", 100.0 * c->c7/t->tsc);
+
+ if (do_dts)
+ turbostat_submit(NULL, "temperature", name, c->core_temp_c);
+
+ /* submit per-package data only for 1st core in package */
+ if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
+ goto done;
+
+ ssnprintf(name, sizeof(name), "pkg%02d", p->package_id);
+
+ if (do_ptm)
+ turbostat_submit(NULL, "temperature", name, p->pkg_temp_c);
+ if (do_pkg_cstate & (1 << 2))
+ turbostat_submit(name, "percent", "pc2", 100.0 * p->pc2/t->tsc);
+ if (do_pkg_cstate & (1 << 3))
+ turbostat_submit(name, "percent", "pc3", 100.0 * p->pc3/t->tsc);
+ if (do_pkg_cstate & (1 << 6))
+ turbostat_submit(name, "percent", "pc6", 100.0 * p->pc6/t->tsc);
+ if (do_pkg_cstate & (1 << 7))
+ turbostat_submit(name, "percent", "pc7", 100.0 * p->pc7/t->tsc);
+ if (do_pkg_cstate & (1 << 8))
+ turbostat_submit(name, "percent", "pc8", 100.0 * p->pc8/t->tsc);
+ if (do_pkg_cstate & (1 << 9))
+ turbostat_submit(name, "percent", "pc9", 100.0 * p->pc9/t->tsc);
+ if (do_pkg_cstate & (1 << 10))
+ turbostat_submit(name, "percent", "pc10", 100.0 * p->pc10/t->tsc);
+
+ if (do_rapl) {
+ if (do_rapl & RAPL_PKG)
+ turbostat_submit(name, "power", "Pkg_W", p->energy_pkg * rapl_energy_units / interval_float);
+ if (do_rapl & RAPL_CORES)
+ turbostat_submit(name, "power", "Cor_W", p->energy_cores * rapl_energy_units / interval_float);
+ if (do_rapl & RAPL_GFX)
+ turbostat_submit(name, "power", "GFX_W", p->energy_gfx * rapl_energy_units / interval_float);
+ if (do_rapl & RAPL_DRAM)
+ turbostat_submit(name, "power", "RAM_W", p->energy_dram * rapl_energy_units / interval_float);
+ }
+done:
return 0;
}
+/**********************************
+ * Looping function over all CPUs *
+ **********************************/
+
+/*
+ * Check if a given cpu id is in our compiled list of existing CPUs
+ *
+ * CHECKME: Why do we need this?
+ */
+static int
+cpu_is_not_present(int cpu)
+{
+ return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set);
+}
+
+/*
+ * Loop on all CPUs in topological order
+ *
+ * Skip 'non-present' cpus (CHECKME: Why do we need this?)
+ * Return the error code at the first error or 0
+ */
static int __attribute__((warn_unused_result))
-delta_cpu(struct thread_data *t, struct core_data *c,
- struct pkg_data *p, struct thread_data *t2,
- struct core_data *c2, struct pkg_data *p2)
+for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *),
+ struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base)
{
- int ret;
+ int retval, pkg_no, core_no, thread_no;
- /* calculate core delta only for 1st thread in core */
- if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE)
- delta_core(c, c2);
+ for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
+ for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
+ for (thread_no = 0; thread_no <
+ topo.num_threads_per_core; ++thread_no) {
+ struct thread_data *t;
+ struct core_data *c;
+ struct pkg_data *p;
- /* always calculate thread delta */
- ret = delta_thread(t, t2, c2); /* c2 is core delta */
- if (ret != 0)
- return ret;
+ t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
- /* calculate package delta only for 1st core in package */
- if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)
- delta_package(p, p2);
+ if (cpu_is_not_present(t->cpu_id))
+ continue;
+
+ c = GET_CORE(core_base, core_no, pkg_no);
+ p = GET_PKG(pkg_base, pkg_no);
+ retval = func(t, c, p);
+ if (retval)
+ return retval;
+ }
+ }
+ }
return 0;
}
/*
- * get_counters(...)
- * migrate to cpu
- * acquire and record local counters for that cpu
+ * Dedicated loop: Extract every data evolution for all CPU
+ *
+ * Core data is shared for all threads in one core: extracted only for the first thread
+ * Package data is shared for all core in one package: extracted only for the first thread of the first core
*/
static int __attribute__((warn_unused_result))
-get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
+for_all_cpus_delta(const struct thread_data *thread_new_base, const struct core_data *core_new_base, const struct pkg_data *pkg_new_base,
+ const struct thread_data *thread_old_base, const struct core_data *core_old_base, const struct pkg_data *pkg_old_base)
{
- int cpu = t->cpu_id;
- unsigned long long msr;
- int msr_fd;
- int retval = 0;
+ int retval, pkg_no, core_no, thread_no;
- msr_fd = open_msr(cpu);
- if (msr_fd < 0)
- return msr_fd;
+ for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
+ for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
+ for (thread_no = 0; thread_no <
+ topo.num_threads_per_core; ++thread_no) {
+ struct thread_data *t_delta;
+ const struct thread_data *t_old, *t_new;
+ struct core_data *c_delta;
-#define READ_MSR(msr, dst) \
-do { \
- if (read_msr(msr_fd, msr, dst)) { \
- retval = -ERR_##msr; \
- goto out; \
- } \
-} while (0)
+ /* Get correct pointers for threads */
+ t_delta = GET_THREAD(thread_delta, thread_no, core_no, pkg_no);
+ t_new = GET_THREAD(thread_new_base, thread_no, core_no, pkg_no);
+ t_old = GET_THREAD(thread_old_base, thread_no, core_no, pkg_no);
- READ_MSR(MSR_IA32_TSC, &t->tsc);
+ /* Skip threads that disappeared */
+ if (cpu_is_not_present(t_delta->cpu_id))
+ continue;
- READ_MSR(MSR_IA32_APERF, &t->aperf);
- READ_MSR(MSR_IA32_MPERF, &t->mperf);
+ /* c_delta is always required for delta_thread */
+ c_delta = GET_CORE(core_delta, core_no, pkg_no);
- READ_MSR(MSR_SMI_COUNT, &msr);
- t->smi_count = msr & 0xFFFFFFFF;
+ /* calculate core delta only for 1st thread in core */
+ if (t_new->flags & CPU_IS_FIRST_THREAD_IN_CORE) {
+ const struct core_data *c_old, *c_new;
- /* collect core counters only for 1st thread in core */
- if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) {
- retval = 0;
- goto out;
- }
+ c_new = GET_CORE(core_new_base, core_no, pkg_no);
+ c_old = GET_CORE(core_old_base, core_no, pkg_no);
- if (do_core_cstate & (1 << 3))
- READ_MSR(MSR_CORE_C3_RESIDENCY, &c->c3);
- if (do_core_cstate & (1 << 6))
- READ_MSR(MSR_CORE_C6_RESIDENCY, &c->c6);
- if (do_core_cstate & (1 << 7))
- READ_MSR(MSR_CORE_C7_RESIDENCY, &c->c7);
+ delta_core(c_delta, c_new, c_old);
+ }
- if (do_dts) {
- READ_MSR(MSR_IA32_THERM_STATUS, &msr);
- c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
- }
+ /* Always calculate thread delta */
+ retval = delta_thread(t_delta, t_new, t_old, c_delta);
+ if (retval)
+ return retval;
- /* collect package counters only for 1st core in package */
- if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) {
- retval = 0;
- goto out;
- }
+ /* calculate package delta only for 1st core in package */
+ if (t_new->flags & CPU_IS_FIRST_CORE_IN_PACKAGE) {
+ struct pkg_data *p_delta;
+ const struct pkg_data *p_old, *p_new;
- if (do_pkg_cstate & (1 << 2))
- READ_MSR(MSR_PKG_C2_RESIDENCY, &p->pc2);
- if (do_pkg_cstate & (1 << 3))
- READ_MSR(MSR_PKG_C3_RESIDENCY, &p->pc3);
- if (do_pkg_cstate & (1 << 6))
- READ_MSR(MSR_PKG_C6_RESIDENCY, &p->pc6);
- if (do_pkg_cstate & (1 << 7))
- READ_MSR(MSR_PKG_C7_RESIDENCY, &p->pc7);
- if (do_pkg_cstate & (1 << 8))
- READ_MSR(MSR_PKG_C8_RESIDENCY, &p->pc8);
- if (do_pkg_cstate & (1 << 9))
- READ_MSR(MSR_PKG_C9_RESIDENCY, &p->pc9);
- if (do_pkg_cstate & (1 << 10))
- READ_MSR(MSR_PKG_C10_RESIDENCY, &p->pc10);
+ p_delta = GET_PKG(package_delta, pkg_no);
+ p_new = GET_PKG(pkg_new_base, pkg_no);
+ p_old = GET_PKG(pkg_old_base, pkg_no);
- if (do_rapl & RAPL_PKG) {
- READ_MSR(MSR_PKG_ENERGY_STATUS, &msr);
- p->energy_pkg = msr & 0xFFFFFFFF;
- }
- if (do_rapl & RAPL_CORES) {
- READ_MSR(MSR_PP0_ENERGY_STATUS, &msr);
- p->energy_cores = msr & 0xFFFFFFFF;
- }
- if (do_rapl & RAPL_DRAM) {
- READ_MSR(MSR_DRAM_ENERGY_STATUS, &msr);
- p->energy_dram = msr & 0xFFFFFFFF;
- }
- if (do_rapl & RAPL_GFX) {
- READ_MSR(MSR_PP1_ENERGY_STATUS, &msr);
- p->energy_gfx = msr & 0xFFFFFFFF;
- }
- if (do_rapl & RAPL_PKG_PERF_STATUS) {
- READ_MSR(MSR_PKG_PERF_STATUS, &msr);
- p->rapl_pkg_perf_status = msr & 0xFFFFFFFF;
- }
- if (do_rapl & RAPL_DRAM_PERF_STATUS) {
- READ_MSR(MSR_DRAM_PERF_STATUS, &msr);
- p->rapl_dram_perf_status = msr & 0xFFFFFFFF;
- }
- if (do_ptm) {
- READ_MSR(MSR_IA32_PACKAGE_THERM_STATUS, &msr);
- p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
+ delta_package(p_delta, p_new, p_old);
+ }
+ }
+ }
}
-
-out:
- close(msr_fd);
- return retval;
+ return 0;
}
+
static void
free_all_buffers(void)
{
cpu_affinity_set = NULL;
cpu_affinity_setsize = 0;
+ CPU_FREE(cpu_saved_affinity_set);
+ cpu_saved_affinity_set = NULL;
+ cpu_saved_affinity_setsize = 0;
+
free(thread_even);
free(core_even);
free(package_even);
thread_odd = NULL;
core_odd = NULL;
package_odd = NULL;
+
+ free(thread_delta);
+ free(core_delta);
+ free(package_delta);
+
+ thread_delta = NULL;
+ core_delta = NULL;
+ package_delta = NULL;
}
/*
}
/*
- * run func(thread, core, package) in topology order
- * skip non-present cpus
- */
-
-
-static int __attribute__((warn_unused_result))
-for_all_cpus_2(int (func)(struct thread_data *, struct core_data *,
- struct pkg_data *, struct thread_data *, struct core_data *,
- struct pkg_data *), struct thread_data *thread_base,
- struct core_data *core_base, struct pkg_data *pkg_base,
- struct thread_data *thread_base2, struct core_data *core_base2,
- struct pkg_data *pkg_base2)
-{
- int retval, pkg_no, core_no, thread_no;
-
- for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
- for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
- for (thread_no = 0; thread_no <
- topo.num_threads_per_core; ++thread_no) {
- struct thread_data *t, *t2;
- struct core_data *c, *c2;
- struct pkg_data *p, *p2;
-
- t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
-
- if (cpu_is_not_present(t->cpu_id))
- continue;
-
- t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no);
-
- c = GET_CORE(core_base, core_no, pkg_no);
- c2 = GET_CORE(core_base2, core_no, pkg_no);
-
- p = GET_PKG(pkg_base, pkg_no);
- p2 = GET_PKG(pkg_base2, pkg_no);
-
- retval = func(t, c, p, t2, c2, p2);
- if (retval)
- return retval;
- }
- }
- }
- return 0;
-}
-
-/*
* run func(cpu) on every cpu in /proc/stat
* return max_cpu number
*/
int cpu_num;
int retval;
- fp = fopen(proc_stat, "r");
+ fp = fopen("/proc/stat", "r");
if (!fp) {
- ERROR("%s: open failed", proc_stat);
+ ERROR("Failed to open /proc/stat");
return -ERR_CANT_OPEN_FILE;
}
retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n");
if (retval != 0) {
- ERROR("%s: failed to parse format", proc_stat);
+ ERROR("Failed to parse /proc/stat");
+ fclose(fp);
return -ERR_CANT_READ_PROC_STAT;
}
}
-static void
-turbostat_submit (const char *plugin_instance,
- const char *type, const char *type_instance,
- gauge_t value)
-{
- value_list_t vl = VALUE_LIST_INIT;
- value_t v;
-
- v.gauge = value;
- vl.values = &v;
- vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, PLUGIN_NAME, sizeof (vl.plugin));
- if (plugin_instance != NULL)
- sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
- sstrncpy (vl.type, type, sizeof (vl.type));
- if (type_instance != NULL)
- sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
-
- plugin_dispatch_values (&vl);
-}
-
-/*
- * column formatting convention & formats
- * package: "pk" 2 columns %2d
- * core: "cor" 3 columns %3d
- * CPU: "CPU" 3 columns %3d
- * Pkg_W: %6.2
- * Cor_W: %6.2
- * GFX_W: %5.2
- * RAM_W: %5.2
- * GHz: "GHz" 3 columns %3.2
- * TSC: "TSC" 3 columns %3.2
- * SMI: "SMI" 4 columns %4d
- * percentage " %pc3" %6.2
- * Perf Status percentage: %5.2
- * "CTMP" 4 columns %4d
- */
-#define NAME_LEN 12
-static int
-submit_counters(struct thread_data *t, struct core_data *c,
- struct pkg_data *p)
-{
- char name[NAME_LEN];
- double interval_float;
-
- interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;
-
- ssnprintf(name, sizeof(name), "cpu%02d", t->cpu_id);
-
- if (!skip_c0)
- turbostat_submit(name, "percent", "c0", 100.0 * t->mperf/t->tsc);
- if (!skip_c1)
- turbostat_submit(name, "percent", "c1", 100.0 * t->c1/t->tsc);
-
- /* GHz */
- if ((!aperf_mperf_unstable) || (!(t->aperf > t->tsc || t->mperf > t->tsc)))
- turbostat_submit(NULL, "frequency", name, 1.0 * t->tsc / 1000000000 * t->aperf / t->mperf / interval_float);
-
- /* SMI */
- turbostat_submit(NULL, "current", name, t->smi_count);
-
- /* print per-core data only for 1st thread in core */
- if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
- goto done;
-
- ssnprintf(name, sizeof(name), "core%02d", c->core_id);
-
- if (do_core_cstate & (1 << 3))
- turbostat_submit(name, "percent", "c3", 100.0 * c->c3/t->tsc);
- if (do_core_cstate & (1 << 6))
- turbostat_submit(name, "percent", "c6", 100.0 * c->c6/t->tsc);
- if (do_core_cstate & (1 << 7))
- turbostat_submit(name, "percent", "c7", 100.0 * c->c7/t->tsc);
-
- if (do_dts)
- turbostat_submit(NULL, "temperature", name, c->core_temp_c);
-
- /* print per-package data only for 1st core in package */
- if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
- goto done;
-
- ssnprintf(name, sizeof(name), "pkg%02d", p->package_id);
-
- if (do_ptm)
- turbostat_submit(NULL, "temperature", name, p->pkg_temp_c);
-
- if (do_pkg_cstate & (1 << 2))
- turbostat_submit(name, "percent", "pc2", 100.0 * p->pc2/t->tsc);
- if (do_pkg_cstate & (1 << 3))
- turbostat_submit(name, "percent", "pc3", 100.0 * p->pc3/t->tsc);
- if (do_pkg_cstate & (1 << 6))
- turbostat_submit(name, "percent", "pc6", 100.0 * p->pc6/t->tsc);
- if (do_pkg_cstate & (1 << 7))
- turbostat_submit(name, "percent", "pc7", 100.0 * p->pc7/t->tsc);
- if (do_pkg_cstate & (1 << 8))
- turbostat_submit(name, "percent", "pc8", 100.0 * p->pc8/t->tsc);
- if (do_pkg_cstate & (1 << 9))
- turbostat_submit(name, "percent", "pc9", 100.0 * p->pc9/t->tsc);
- if (do_pkg_cstate & (1 << 10))
- turbostat_submit(name, "percent", "pc10", 100.0 * p->pc10/t->tsc);
-
- if (do_rapl) {
- if (do_rapl & RAPL_PKG)
- turbostat_submit(name, "power", "Pkg_W", p->energy_pkg * rapl_energy_units / interval_float);
- if (do_rapl & RAPL_CORES)
- turbostat_submit(name, "power", "Cor_W", p->energy_cores * rapl_energy_units / interval_float);
- if (do_rapl & RAPL_GFX)
- turbostat_submit(name, "power", "GFX_W", p->energy_gfx * rapl_energy_units / interval_float);
- if (do_rapl & RAPL_DRAM)
- turbostat_submit(name, "power", "RAM_W", p->energy_dram * rapl_energy_units / interval_float);
- }
-done:
- return 0;
-}
+static int setup_all_buffers(void);
static int
turbostat_read(user_data_t * not_used)
return -ERR_CPU_NOT_PRESENT;
}
+ /* Saving the scheduling affinity, as it will be modified by get_counters */
+ if (sched_getaffinity(0, cpu_saved_affinity_setsize, cpu_saved_affinity_set) != 0)
+ return -ERR_CPU_SAVE_SCHED_AFFINITY;
+
if (!initialized) {
if ((ret = for_all_cpus(get_counters, EVEN_COUNTERS)) < 0)
- return ret;
+ goto out;
gettimeofday(&tv_even, (struct timezone *)NULL);
is_even = 1;
initialized = 1;
- return 0;
+ ret = 0;
+ goto out;
}
if (is_even) {
if ((ret = for_all_cpus(get_counters, ODD_COUNTERS)) < 0)
- return ret;
+ goto out;
gettimeofday(&tv_odd, (struct timezone *)NULL);
is_even = 0;
timersub(&tv_odd, &tv_even, &tv_delta);
- if ((ret = for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS)) < 0)
- return ret;
- if ((ret = for_all_cpus(submit_counters, EVEN_COUNTERS)) < 0)
- return ret;
+ if ((ret = for_all_cpus_delta(ODD_COUNTERS, EVEN_COUNTERS)) < 0)
+ goto out;
+ if ((ret = for_all_cpus(submit_counters, DELTA_COUNTERS)) < 0)
+ goto out;
} else {
if ((ret = for_all_cpus(get_counters, EVEN_COUNTERS)) < 0)
- return ret;
+ goto out;
gettimeofday(&tv_even, (struct timezone *)NULL);
is_even = 1;
timersub(&tv_even, &tv_odd, &tv_delta);
- if ((ret = for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS)) < 0)
- return ret;
- if ((ret = for_all_cpus(submit_counters, ODD_COUNTERS)) < 0)
- return ret;
+ if ((ret = for_all_cpus_delta(EVEN_COUNTERS, ODD_COUNTERS)) < 0)
+ goto out;
+ if ((ret = for_all_cpus(submit_counters, DELTA_COUNTERS)) < 0)
+ goto out;
}
- return 0;
+ ret = 0;
+out:
+ /*
+ * Let's restore the affinity
+ * This might fail if the number of CPU changed, but we can't do anything in that case..
+ */
+ (void)sched_setaffinity(0, cpu_saved_affinity_setsize, cpu_saved_affinity_set);
+ return ret;
}
static int __attribute__((warn_unused_result))
* This is usually equal to tjMax.
*
* Older processors do not have this MSR, so there we guess,
- * but also allow cmdline over-ride with -T.
+ * but also allow conficuration over-ride with "TCCActivationTemp".
*
* Several MSR temperature values are in units of degrees-C
* below this value, including the Digital Thermal Sensor (DTS),
if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
return 0;
- if (tcc_activation_temp_override != 0) {
- tcc_activation_temp = tcc_activation_temp_override;
- ERROR("cpu%d: Using cmdline TCC Target (%d C)\n",
- cpu, tcc_activation_temp);
+ if (tcc_activation_temp != 0) {
+ p->tcc_activation_temp = tcc_activation_temp;
return 0;
}
if (get_msr(t->cpu_id, MSR_IA32_TEMPERATURE_TARGET, &msr))
goto guess;
- target_c_local = (msr >> 16) & 0x7F;
+ target_c_local = (msr >> 16) & 0xFF;
- if (target_c_local < 85 || target_c_local > 127)
+ if (!target_c_local)
goto guess;
- tcc_activation_temp = target_c_local;
+ p->tcc_activation_temp = target_c_local;
return 0;
guess:
- tcc_activation_temp = TJMAX_DEFAULT;
- WARNING("cpu%d: Guessing tjMax %d C, Please use -T to specify",
- t->cpu_id, tcc_activation_temp);
+ p->tcc_activation_temp = TJMAX_DEFAULT;
+ WARNING("cpu%d: Guessing tjMax %d C, Please use TCCActivationTemp to specify",
+ t->cpu_id, p->tcc_activation_temp);
return 0;
}
case 0x3A: /* IVB */
case 0x3E: /* IVB Xeon */
do_core_cstate = (1 << 3) | (1 << 6) | (1 << 7);
- do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7);
+ do_pkg_cstate = (1 << 2) | (1 << 3) | (1 << 6) | (1 << 7);
break;
/* Haswell Bridge */
case 0x3C: /* HSW */
case 0x3F: /* HSW */
case 0x46: /* HSW */
do_core_cstate = (1 << 3) | (1 << 6) | (1 << 7);
- do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7);
+ do_pkg_cstate = (1 << 2) | (1 << 3) | (1 << 6) | (1 << 7);
break;
case 0x45: /* HSW */
do_core_cstate = (1 << 3) | (1 << 6) | (1 << 7);
- do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7) | (1 << 8) | (1 << 9) | (1 << 10);
+ do_pkg_cstate = (1 << 2) | (1 << 3) | (1 << 6) | (1 << 7) | (1 << 8) | (1 << 9) | (1 << 10);
break;
/* Broadwel */
case 0x4F: /* BDW */
case 0x56: /* BDX-DE */
do_core_cstate = (1 << 3) | (1 << 6) | (1 << 7);
- do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7);
+ do_pkg_cstate = (1 << 2) | (1 << 3) | (1 << 6) | (1 << 7);
break;
case 0x3D: /* BDW */
do_core_cstate = (1 << 3) | (1 << 6) | (1 << 7);
- do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7) | (1 << 8) | (1 << 9) | (1 << 10);
+ do_pkg_cstate = (1 << 2) | (1 << 3) | (1 << 6) | (1 << 7) | (1 << 8) | (1 << 9) | (1 << 10);
break;
default:
ERROR("Unsupported CPU");
/*
+ * Allocate and initialize cpu_saved_affinity_set
+ */
+ cpu_saved_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1));
+ if (cpu_saved_affinity_set == NULL) {
+ free(cpus);
+ ERROR("CPU_ALLOC");
+ return -ERR_CPU_ALLOC;
+ }
+ cpu_saved_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
+ CPU_ZERO_S(cpu_saved_affinity_setsize, cpu_saved_affinity_set);
+
+
+ /*
* For online cpus
* find max_core_id, max_package_id
*/
ret = init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
if (ret < 0)
return ret;
+ ret = init_counter(DELTA_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
+ if (ret < 0)
+ return ret;
return 0;
}
DO_OR_GOTO_ERR(topology_probe());
DO_OR_GOTO_ERR(allocate_counters(&thread_even, &core_even, &package_even));
DO_OR_GOTO_ERR(allocate_counters(&thread_odd, &core_odd, &package_odd));
+ DO_OR_GOTO_ERR(allocate_counters(&thread_delta, &core_delta, &package_delta));
DO_OR_GOTO_ERR(for_all_proc_cpus(initialize_counters));
+ DO_OR_GOTO_ERR(for_all_cpus(set_temperature_target, EVEN_COUNTERS));
+ DO_OR_GOTO_ERR(for_all_cpus(set_temperature_target, ODD_COUNTERS));
allocated = 1;
return 0;
DO_OR_GOTO_ERR(probe_cpu());
DO_OR_GOTO_ERR(check_dev_msr());
DO_OR_GOTO_ERR(setup_all_buffers());
- DO_OR_GOTO_ERR(for_all_cpus(set_temperature_target, EVEN_COUNTERS));
plugin_register_complex_read(NULL, PLUGIN_NAME, turbostat_read, NULL, NULL);
return ret;
}
+static const char *config_keys[] =
+{
+ "TCCActivationTemp",
+};
+static const int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+
+static int
+turbostat_config(const char *key, const char *value)
+{
+ long unsigned int tmp_val;
+ char *end;
+
+ if (strcasecmp("TCCActivationTemp", key) == 0) {
+ tmp_val = strtoul(value, &end, 0);
+ if (*end != '\0' || tmp_val > UINT_MAX)
+ return -1;
+ tcc_activation_temp = (unsigned int) tmp_val;
+ } else {
+ return -1;
+ }
+ return 0;
+}
+
void module_register(void);
void module_register(void)
{
plugin_register_init(PLUGIN_NAME, turbostat_init);
+ plugin_register_config(PLUGIN_NAME, turbostat_config, config_keys, config_keys_num);
}
projects / collectd.git / blobdiff