Date: Sun, 5 Jan 2020 14:08:22 +0100 (CET) From: Wojciech Puchar <wojtek@puchar.net> To: Wojciech Puchar <wojtek@puchar.net> Cc: Mark Millard <marklmi@yahoo.com>, freebsd-hackers@freebsd.org Subject: Re: processes are killed because of out of swap space Message-ID: <alpine.BSF.2.20.2001051408100.3906@puchar.net> In-Reply-To: <alpine.BSF.2.20.2001051307080.18098@puchar.net> References: <C1C8F724-88B0-49D9-A9DF-DB0AA8AF3164.ref@yahoo.com> <C1C8F724-88B0-49D9-A9DF-DB0AA8AF3164@yahoo.com> <alpine.BSF.2.20.2001051307080.18098@puchar.net>
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>> If you are not seeing such swap_pager_getswapspace messages, then >> it is likely that the mount of swap space still available is not the >> actual thing driving the kills. >> >> Another thing that can lead to kills is paging I/O that is >> slow. > > paging device is nvd so it's fast. And system isn't even paging heavily. but > is doing geom_raid5 rebuild right now+copying lots of files to this raid (new > RAID5 just created). > > > but still - there is A LOT of memory to be reclaimed. inactive is many > gigabytes on my server. > >> # Delay when persisstent low free RAM leads to >> # Out Of Memory killing of processes: >> vm.pageout_oom_seq=120 > set to 300. > >> some free RAM.) >> >> # >> # For plunty of swap/paging space (will not >> # run out), avoid pageout delays leading to >> # Out Of Memory killing of processes: >> vm.pfault_oom_attempts=-1 > > i don't have such sysctl. is it in FreeBSD 12? > i have 11.3 > after changes - no effect
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