derive_t io_syscr;
derive_t io_syscw;
+ derive_t cswitch_vol;
+ derive_t cswitch_invol;
+
struct procstat_entry_s *next;
} procstat_entry_t;
derive_t io_syscr;
derive_t io_syscw;
+ derive_t cswitch_vol;
+ derive_t cswitch_invol;
+
struct procstat *next;
struct procstat_entry_s *instances;
} procstat_t;
static procstat_t *list_head_g = NULL;
+ static _Bool report_ctx_switch = 0;
+
#if HAVE_THREAD_INFO
static mach_port_t port_host_self;
static mach_port_t port_task_self;
pse->io_wchar = entry->io_wchar;
pse->io_syscr = entry->io_syscr;
pse->io_syscw = entry->io_syscw;
+ pse->cswitch_vol = entry->cswitch_vol;
+ pse->cswitch_invol = entry->cswitch_invol;
ps->num_proc += pse->num_proc;
ps->num_lwp += pse->num_lwp;
ps->io_syscr += ((pse->io_syscr == -1)?0:pse->io_syscr);
ps->io_syscw += ((pse->io_syscw == -1)?0:pse->io_syscw);
+ ps->cswitch_vol += ((pse->cswitch_vol == -1)?0:pse->cswitch_vol);
+ ps->cswitch_invol += ((pse->cswitch_invol == -1)?0:pse->cswitch_invol);
+
if ((entry->vmem_minflt_counter == 0)
&& (entry->vmem_majflt_counter == 0))
{
ps->io_wchar = -1;
ps->io_syscr = -1;
ps->io_syscw = -1;
+ ps->cswitch_vol = -1;
+ ps->cswitch_invol = -1;
pse_prev = NULL;
pse = ps->instances;
ps_list_register (c->values[0].value.string,
c->values[1].value.string);
}
+ else if (strcasecmp (c->key, "CollectContextSwitch") == 0)
+ {
+ cf_util_get_boolean (c, &report_ctx_switch);
+ }
else
{
ERROR ("processes plugin: The `%s' configuration option is not "
plugin_dispatch_values (&vl);
}
+ if ( report_ctx_switch )
+ {
+ sstrncpy (vl.type, "contextswitch", sizeof (vl.type));
+ sstrncpy (vl.type_instance, "voluntary", sizeof (vl.type_instance));
+ vl.values[0].derive = ps->cswitch_vol;
+ vl.values_len = 1;
+ plugin_dispatch_values (&vl);
+
+ sstrncpy (vl.type, "contextswitch", sizeof (vl.type));
+ sstrncpy (vl.type_instance, "involuntary", sizeof (vl.type_instance));
+ vl.values[0].derive = ps->cswitch_invol;
+ vl.values_len = 1;
+ plugin_dispatch_values (&vl);
+ }
+
DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; "
"vmem_size = %lu; vmem_rss = %lu; vmem_data = %lu; "
"vmem_code = %lu; "
"vmem_minflt_counter = %"PRIi64"; vmem_majflt_counter = %"PRIi64"; "
"cpu_user_counter = %"PRIi64"; cpu_system_counter = %"PRIi64"; "
"io_rchar = %"PRIi64"; io_wchar = %"PRIi64"; "
- "io_syscr = %"PRIi64"; io_syscw = %"PRIi64";",
+ "io_syscr = %"PRIi64"; io_syscw = %"PRIi64"; "
+ "cswitch_vol = %"PRIi64"; cswitch_invol = %"PRIi64";",
ps->name, ps->num_proc, ps->num_lwp,
ps->vmem_size, ps->vmem_rss,
ps->vmem_data, ps->vmem_code,
ps->vmem_minflt_counter, ps->vmem_majflt_counter,
ps->cpu_user_counter, ps->cpu_system_counter,
- ps->io_rchar, ps->io_wchar, ps->io_syscr, ps->io_syscw);
+ ps->io_rchar, ps->io_wchar, ps->io_syscr, ps->io_syscw,
+ ps->cswitch_vol, ps->cswitch_invol);
} /* void ps_submit_proc_list */
#if KERNEL_LINUX || KERNEL_SOLARIS
/* ------- additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
#if KERNEL_LINUX
-/* Read advanced virtual memory data from /proc/pid/status */
-static procstat_t *ps_read_vmem (int pid, procstat_t *ps)
+ static procstat_t *ps_read_tasks_status (int pid, procstat_t *ps)
+ {
+ char dirname[64];
+ DIR *dh;
+ char filename[64];
+ FILE *fh;
+ struct dirent *ent;
+ derive_t cswitch_vol = 0;
+ derive_t cswitch_invol = 0;
+ char buffer[1024];
+ char *fields[8];
+ int numfields;
+
+ ssnprintf (dirname, sizeof (dirname), "/proc/%i/task", pid);
+
+ if ((dh = opendir (dirname)) == NULL)
+ {
+ DEBUG ("Failed to open directory `%s'", dirname);
+ return (NULL);
+ }
+
+ while ((ent = readdir (dh)) != NULL)
+ {
+ char *tpid;
+
+ if (!isdigit ((int) ent->d_name[0]))
+ continue;
+
+ tpid = ent->d_name;
+
+ ssnprintf (filename, sizeof (filename), "/proc/%i/task/%s/status", pid, tpid);
+ if ((fh = fopen (filename, "r")) == NULL)
+ {
+ DEBUG ("Failed to open file `%s'", filename);
+ continue;
+ }
+
+ while (fgets (buffer, sizeof(buffer), fh) != NULL)
+ {
+ derive_t tmp;
+ char *endptr;
+
+ if (strncmp (buffer, "voluntary_ctxt_switches", 23) != 0
+ && strncmp (buffer, "nonvoluntary_ctxt_switches", 26) != 0)
+ continue;
+
+ numfields = strsplit (buffer, fields,
+ STATIC_ARRAY_SIZE (fields));
+
+ if (numfields < 2)
+ continue;
+
+ errno = 0;
+ endptr = NULL;
+ tmp = (derive_t) strtoll (fields[1], &endptr, /* base = */ 10);
+ if ((errno == 0) && (endptr != fields[1]))
+ {
+ if (strncmp (buffer, "voluntary_ctxt_switches", 23) == 0)
+ {
+ cswitch_vol += tmp;
+ }
+ else if (strncmp (buffer, "nonvoluntary_ctxt_switches", 26) == 0)
+ {
+ cswitch_invol += tmp;
+ }
+ }
+ } /* while (fgets) */
+
+ if (fclose (fh))
+ {
+ char errbuf[1024];
+ WARNING ("processes: fclose: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
+ }
+ closedir (dh);
+
+ ps->cswitch_vol = cswitch_vol;
+ ps->cswitch_invol = cswitch_invol;
+
+ return (ps);
+ } /* int *ps_read_tasks_status */
+
+ static int ps_read_tasks (int pid)
+ {
+ char dirname[64];
+ DIR *dh;
+ struct dirent *ent;
+ int count = 0;
+
+ ssnprintf (dirname, sizeof (dirname), "/proc/%i/task", pid);
+
+ if ((dh = opendir (dirname)) == NULL)
+ {
+ DEBUG ("Failed to open directory `%s'", dirname);
+ return (-1);
+ }
+
+ while ((ent = readdir (dh)) != NULL)
+ {
+ if (!isdigit ((int) ent->d_name[0]))
+ continue;
+ else
+ count++;
+ }
+ closedir (dh);
+
+ return ((count >= 1) ? count : 1);
+ } /* int *ps_read_tasks */
+
+/* Read data from /proc/pid/status */
+static procstat_t *ps_read_status (int pid, procstat_t *ps)
{
FILE *fh;
char buffer[1024];
char filename[64];
- unsigned long long lib = 0;
- unsigned long long exe = 0;
- unsigned long long data = 0;
+ unsigned long lib = 0;
+ unsigned long exe = 0;
+ unsigned long data = 0;
+ unsigned long threads = 0;
char *fields[8];
int numfields;
while (fgets (buffer, sizeof(buffer), fh) != NULL)
{
- long long tmp;
+ unsigned long tmp;
char *endptr;
- if (strncmp (buffer, "Vm", 2) != 0)
+ if (strncmp (buffer, "Vm", 2) != 0
+ && strncmp (buffer, "Threads", 7) != 0)
continue;
numfields = strsplit (buffer, fields,
errno = 0;
endptr = NULL;
- tmp = strtoll (fields[1], &endptr, /* base = */ 10);
+ tmp = strtoul (fields[1], &endptr, /* base = */ 10);
if ((errno == 0) && (endptr != fields[1]))
{
if (strncmp (buffer, "VmData", 6) == 0)
{
exe = tmp;
}
+ else if (strncmp(buffer, "Threads", 7) == 0)
+ {
+ threads = tmp;
+ }
}
} /* while (fgets) */
ps->vmem_data = data * 1024;
ps->vmem_code = (exe + lib) * 1024;
+ if (threads != 0)
+ ps->num_lwp = threads;
return (ps);
} /* procstat_t *ps_read_vmem */
}
else
{
- if ( (ps->num_lwp = ps_read_tasks (pid)) == -1 )
+ ps->num_lwp = strtoul (fields[17], /* endptr = */ NULL, /* base = */ 10);
+ if ((ps_read_status(pid, ps)) == NULL)
{
- /* returns -1 => kernel 2.4 */
- ps->num_lwp = 1;
+ /* No VMem data */
+ ps->vmem_data = -1;
+ ps->vmem_code = -1;
+ DEBUG("ps_read_process: did not get vmem data for pid %i",pid);
}
+ if (ps->num_lwp <= 0)
+ ps->num_lwp = 1;
ps->num_proc = 1;
}
cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
vmem_rss = vmem_rss * pagesize_g;
- if ( (ps_read_vmem(pid, ps)) == NULL)
- {
- /* No VMem data */
- ps->vmem_data = -1;
- ps->vmem_code = -1;
- DEBUG("ps_read_process: did not get vmem data for pid %i",pid);
- }
-
ps->cpu_user_counter = cpu_user_counter;
ps->cpu_system_counter = cpu_system_counter;
ps->vmem_size = (unsigned long) vmem_size;
DEBUG("ps_read_process: not get io data for pid %i",pid);
}
+ if ( report_ctx_switch )
+ {
+ if ( (ps_read_tasks_status(pid, ps)) == NULL)
+ {
+ ps->cswitch_vol = -1;
+ ps->cswitch_invol = -1;
+
+ DEBUG("ps_read_tasks_status: not get context "
+ "switch data for pid %i",pid);
+ }
+ }
+
/* success */
return (0);
} /* int ps_read_process (...) */
pse.io_syscr = ps.io_syscr;
pse.io_syscw = ps.io_syscw;
+ pse.cswitch_vol = ps.cswitch_vol;
+ pse.cswitch_invol = ps.cswitch_invol;
+
switch (state)
{
case 'R': running++; break;
projects / collectd.git / commitdiff