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16 lines
628 B
C
16 lines
628 B
C
/* https://cirosantilli.com/linux-kernel-module-cheat#sysconf */
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#define _XOPEN_SOURCE 700
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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int main(void) {
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/* Number of processors, not considering affinity:
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* http://stackoverflow.com/questions/2693948/how-do-i-retrieve-the-number-of-processors-on-c-linux */
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printf("_SC_NPROCESSORS_ONLN = %ld\n", sysconf(_SC_NPROCESSORS_ONLN));
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/* CPUs configured by OS during boot. Some may have gone offline, so could be larger than _SC_NPROCESSORS_ONLN.a */
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printf("_SC_NPROCESSORS_CONF = %ld\n", sysconf(_SC_NPROCESSORS_CONF));
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return EXIT_SUCCESS;
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}
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