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Merge pull request #198 from marius/master

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Use the canonical source for the number of CPUs.
This commit is contained in:
Brenden Matthews 2016-01-10 14:05:37 -08:00
commit fdb8523d26
1 changed files with 4 additions and 6 deletions
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10
src/linux.cc
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@ -799,13 +799,14 @@ void get_cpu_count(void)
{ {
FILE *stat_fp; FILE *stat_fp;
static int rep = 0; static int rep = 0;
int highest_cpu_index;
char buf[256]; char buf[256];
if (info.cpu_usage) { if (info.cpu_usage) {
return; return;
} }
if (!(stat_fp = open_file("/proc/stat", &rep))) { if (!(stat_fp = open_file("/sys/devices/system/cpu/present", &rep))) {
return; return;
} }
@ -816,11 +817,8 @@ void get_cpu_count(void)
break; break;
} }
if (strncmp(buf, "cpu", 3) == 0 && isdigit(buf[3])) { if (sscanf(buf, "%*d-%d", &highest_cpu_index) == 1) {
if (info.cpu_count == 0) { info.cpu_count = highest_cpu_index + 1;
determine_longstat(buf);
}
info.cpu_count++;
} }
} }
info.cpu_usage = (float*)malloc((info.cpu_count + 1) * sizeof(float)); info.cpu_usage = (float*)malloc((info.cpu_count + 1) * sizeof(float));