From owner-svn-src-all@freebsd.org Tue Oct 22 14:10:32 2019 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 058F215BB92; Tue, 22 Oct 2019 14:10:32 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46yFlW6Nb6z3KLp; Tue, 22 Oct 2019 14:10:31 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id BEE06D6E1; Tue, 22 Oct 2019 14:10:31 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x9MEAVGD082418; Tue, 22 Oct 2019 14:10:31 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x9MEAV6B082417; Tue, 22 Oct 2019 14:10:31 GMT (envelope-from markj@FreeBSD.org) Message-Id: <201910221410.x9MEAV6B082417@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Tue, 22 Oct 2019 14:10:31 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r353884 - stable/12/sys/vm X-SVN-Group: stable-12 X-SVN-Commit-Author: markj X-SVN-Commit-Paths: stable/12/sys/vm X-SVN-Commit-Revision: 353884 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Oct 2019 14:10:32 -0000 Author: markj Date: Tue Oct 22 14:10:31 2019 New Revision: 353884 URL: https://svnweb.freebsd.org/changeset/base/353884 Log: MFC r353734: Further constrain the use of per-CPU caches for free pages. PR: 241048 Modified: stable/12/sys/vm/vm_page.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/vm/vm_page.c ============================================================================== --- stable/12/sys/vm/vm_page.c Tue Oct 22 14:06:42 2019 (r353883) +++ stable/12/sys/vm/vm_page.c Tue Oct 22 14:10:31 2019 (r353884) @@ -199,10 +199,12 @@ vm_page_init_cache_zones(void *dummy __unused) vmd = VM_DOMAIN(domain); /* - * Don't allow the page caches to take up more than .25% of - * memory. + * Don't allow the page caches to take up more than .1875% of + * memory. A UMA bucket contains at most 256 free pages, and we + * have two buckets per CPU per free pool. */ - if (vmd->vmd_page_count / 400 < 256 * mp_ncpus * VM_NFREEPOOL) + if (vmd->vmd_page_count / 600 < 2 * 256 * mp_ncpus * + VM_NFREEPOOL) continue; for (pool = 0; pool < VM_NFREEPOOL; pool++) { pgcache = &vmd->vmd_pgcache[pool];