On 8/04/2021 6:56 am, Mark Johnston wrote: > On Wed, Apr 07, 2021 at 11:22:41PM +0300, Andriy Gapon wrote: >> On 07/04/2021 22:54, Mark Johnston wrote: >>> On Wed, Apr 07, 2021 at 10:42:57PM +0300, Andriy Gapon wrote: >>>> >>>> I regularly see that the top's memory line does not add up (and by a lot). >>>> That can be seen with vm.stats as well. >>>> >>>> For example: >>>> $ sysctl vm.stats | fgrep count >>>> vm.stats.vm.v_cache_count: 0 >>>> vm.stats.vm.v_user_wire_count: 3231 >>>> vm.stats.vm.v_laundry_count: 262058 >>>> vm.stats.vm.v_inactive_count: 3054178 >>>> vm.stats.vm.v_active_count: 621131 >>>> vm.stats.vm.v_wire_count: 1871176 >>>> vm.stats.vm.v_free_count: 187777 >>>> vm.stats.vm.v_page_count: 8134982 >>>> >>>> $ bc >>>>>>> 187777 + 1871176 + 621131 + 3054178 + 262058 >>>> 5996320 >>>>>>> 8134982 - 5996320 >>>> 2138662 >>>> >>>> As you can see, it's not a small number of pages either. >>>> Approximately 2 million pages, 8 gigabytes or 25% of the whole memory on >>>> this >>>> system. >>>> >>>> This is 47c00a9835926e96, 13.0-STABLE amd64. >>>> I do not think that I saw anything like that when I used (much) older >>>> FreeBSD.
For reference, I think that a smaller error has been around for awhile. On a UFS only system, FreeBSD 12.2-STABLE #0 r369523M: Sat Mar 27 00:27:03 AEDT 2021 I have: # sysctl vm.stats | fgrep count; top -b vm.stats.vm.v_cache_count: 0 vm.stats.vm.v_user_wire_count: 0 vm.stats.vm.v_laundry_count: 0 vm.stats.vm.v_inactive_count: 423959 vm.stats.vm.v_active_count: 82623 vm.stats.vm.v_wire_count: 256273 vm.stats.vm.v_free_count: 5457329 vm.stats.vm.v_page_count: 6112118 last pid: 83881; load averages: 0.07, 0.09, 0.06 up 0+07:31:44 12:59:37 90 processes: 1 running, 89 sleeping CPU: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 99.9% idle Mem: 323M Active, 1656M Inact, 1001M Wired, 585M Buf, 21G Free Swap: 24G Total, 24G Free # bc 423959+82623+256273+5457329 6220184 6112118 - 6220184 -108066 _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
