Date: Mon, 23 Sep 2019 08:53:14 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r352617 - head/sys/kern Message-ID: <201909230853.x8N8rEnu024577@repo.freebsd.org>
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Author: mjg Date: Mon Sep 23 08:53:14 2019 New Revision: 352617 URL: https://svnweb.freebsd.org/changeset/base/352617 Log: cache: count evictions of negatve entries Sponsored by: The FreeBSD Foundation Modified: head/sys/kern/vfs_cache.c Modified: head/sys/kern/vfs_cache.c ============================================================================== --- head/sys/kern/vfs_cache.c Mon Sep 23 07:23:29 2019 (r352616) +++ head/sys/kern/vfs_cache.c Mon Sep 23 08:53:14 2019 (r352617) @@ -378,6 +378,8 @@ STATNODE_COUNTER(numfullpathfail2, "Number of fullpath search errors (VOP_VPTOCNP failures)"); STATNODE_COUNTER(numfullpathfail4, "Number of fullpath search errors (ENOMEM)"); STATNODE_COUNTER(numfullpathfound, "Number of successful fullpath calls"); +static long numneg_evicted; STATNODE_ULONG(numneg_evicted, + "Number of negative entries evicted when adding a new entry"); STATNODE_COUNTER(zap_and_exit_bucket_relock_success, "Number of successful removals after relocking"); static long zap_and_exit_bucket_fail; STATNODE_ULONG(zap_and_exit_bucket_fail, @@ -844,6 +846,7 @@ cache_negative_zap_one(void) ncp->nc_name, ncp->nc_neghits); cache_zap_locked(ncp, true); + numneg_evicted++; out_unlock_all: mtx_unlock(&neglist->nl_lock); rw_wunlock(blp);
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