Also print number of available CPUs on Linux
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Authored by arichardson on Aug 13 2020, 2:55 PM.

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emaste
imp
bdrewery

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rS364650: Also print number of available CPUs on Linux

Summary

Without this change the buildworld/buildkernel epilogue looks like this:

World built in 249 seconds, sysctl: cannot stat /proc/sys/hw/ncpu: No such file or directory

ncpu: , make -j72.

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rS FreeBSD src repository - subversion

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arichardson requested review of this revision.Aug 13 2020, 2:55 PM

arichardson created this revision.

Harbormaster completed remote builds in B32974: Diff 75789.Aug 13 2020, 2:55 PM

Side note but I find the current message to be quite lackluster as it does not include user nor system time.

Is there an easy way to include time-like output instead? If time-prefixed execution is a problem then as a hack this perhaps can run "procstat rusage" on itself before and after.

bdrewery accepted this revision.Aug 19 2020, 5:30 PM

This revision is now accepted and ready to land.Aug 19 2020, 5:30 PM

OK with me

Closed by commit rS364650: Also print number of available CPUs on Linux (authored by arichardson). · Explain WhyAug 24 2020, 9:20 AM

This revision was automatically updated to reflect the committed changes.

arichardson added a commit: rS364650: Also print number of available CPUs on Linux.

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head/

Makefile.inc1

6 lines

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head/Makefile.inc1

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#endif		#endif

struct vm_batchqueue {		struct vm_batchqueue {
vm_page_t bq_pa[VM_BATCHQUEUE_SIZE];		vm_page_t bq_pa[VM_BATCHQUEUE_SIZE];
int bq_cnt;		int bq_cnt;
} __aligned(CACHE_LINE_SIZE);		} __aligned(CACHE_LINE_SIZE);

#include <vm/uma.h>		#include <vm/uma.h>
		#include <sys/_blockcount.h>
#include <sys/pidctrl.h>		#include <sys/pidctrl.h>
struct sysctl_oid;		struct sysctl_oid;

/*		/*
* One vm_domain per NUMA domain. Contains pagequeues, free page structures,		* One vm_domain per NUMA domain. Contains pagequeues, free page structures,
* and accounting.		* and accounting.
*		*
* Lock Key:		* Lock Key:
▲ Show 20 Lines • Show All 154 Lines • ▼ Show 20 Lines	struct vm_domain {
long vmd_segs; /* (c) bitmask of the segments */		long vmd_segs; /* (c) bitmask of the segments */
u_int __aligned(CACHE_LINE_SIZE) vmd_free_count; /* (a,f) free page count */		u_int __aligned(CACHE_LINE_SIZE) vmd_free_count; /* (a,f) free page count */
u_int vmd_pageout_deficit; /* (a) Estimated number of pages deficit */		u_int vmd_pageout_deficit; /* (a) Estimated number of pages deficit */
uint8_t vmd_pad[CACHE_LINE_SIZE - (sizeof(u_int) * 2)];		uint8_t vmd_pad[CACHE_LINE_SIZE - (sizeof(u_int) * 2)];

/* Paging control variables, used within single threaded page daemon. */		/* Paging control variables, used within single threaded page daemon. */
struct pidctrl vmd_pid; /* Pageout controller. */		struct pidctrl vmd_pid; /* Pageout controller. */
boolean_t vmd_oom;		boolean_t vmd_oom;
		u_int vmd_inactive_threads;
		u_int vmd_inactive_shortage; /* Per-thread shortage. */
		blockcount_t vmd_inactive_running; /* Number of inactive threads. */
		blockcount_t vmd_inactive_starting; /* Number of threads started. */
		volatile u_int vmd_addl_shortage; /* Shortage accumulator. */
		volatile u_int vmd_inactive_freed; /* Successful inactive frees. */
		volatile u_int vmd_inactive_us; /* Microseconds for above. */
		u_int vmd_inactive_pps; /* Exponential decay frees/second. */
int vmd_oom_seq;		int vmd_oom_seq;
int vmd_last_active_scan;		int vmd_last_active_scan;
struct vm_page vmd_markers[PQ_COUNT]; /* (q) markers for queue scans */		struct vm_page vmd_markers[PQ_COUNT]; /* (q) markers for queue scans */
struct vm_page vmd_inacthead; /* marker for LRU-defeating insertions */		struct vm_page vmd_inacthead; /* marker for LRU-defeating insertions */
struct vm_page vmd_clock[2]; /* markers for active queue scan */		struct vm_page vmd_clock[2]; /* markers for active queue scan */

int vmd_pageout_wanted; /* (a, p) pageout daemon wait channel */		int vmd_pageout_wanted; /* (a, p) pageout daemon wait channel */
int vmd_pageout_pages_needed; /* (d) page daemon waiting for pages? */		int vmd_pageout_pages_needed; /* (d) page daemon waiting for pages? */
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Also print number of available CPUs on LinuxClosedPublicActions