cache: count evictions of negatve entries
Sponsored by: The FreeBSD Foundation
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=352617
@ -378,6 +378,8 @@ STATNODE_COUNTER(numfullpathfail2,
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"Number of fullpath search errors (VOP_VPTOCNP failures)");
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STATNODE_COUNTER(numfullpathfail4, "Number of fullpath search errors (ENOMEM)");
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STATNODE_COUNTER(numfullpathfound, "Number of successful fullpath calls");
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static long numneg_evicted; STATNODE_ULONG(numneg_evicted,
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"Number of negative entries evicted when adding a new entry");
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STATNODE_COUNTER(zap_and_exit_bucket_relock_success,
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"Number of successful removals after relocking");
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static long zap_and_exit_bucket_fail; STATNODE_ULONG(zap_and_exit_bucket_fail,
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@ -844,6 +846,7 @@ cache_negative_zap_one(void)
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ncp->nc_name, ncp->nc_neghits);
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cache_zap_locked(ncp, true);
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numneg_evicted++;
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out_unlock_all:
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mtx_unlock(&neglist->nl_lock);
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rw_wunlock(blp);
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