Date: Tue, 12 Feb 2019 23:49:00 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: Mark Johnston <markj@freebsd.org> Cc: FreeBSD stable <freebsd-stable@freebsd.org> Subject: Re: 11.2-STABLE kernel wired memory leak Message-ID: <763f9373-747a-fe5b-8376-cc9bb3293219@grosbein.net> In-Reply-To: <20190212163446.GA29847@raichu> References: <d8c7abc0-3ba1-40e4-22b1-1b30d28ced14@grosbein.net> <20190212163446.GA29847@raichu>
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12.02.2019 23:34, Mark Johnston wrote: > I suspect that the "leaked" memory is simply being used to cache UMA > items. Note that the values in the FREE column of vmstat -z output are > quite large. The cached items are reclaimed only when the page daemon > wakes up to reclaim memory; if there are no memory shortages, large > amounts of memory may accumulate in UMA caches. In this case, the sum > of the product of columns 2 and 5 gives a total of roughly 4GB cached. Forgot to note, that before I got system to single user mode, there was heavy swap usage (over 3.5GB) and heavy page-in/page-out, 10-20 megabytes per second and system was crawling slow due to pageing.
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