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From: Robin Rosenberg <robin.rosenberg.lists@dewire.com>
To: "Shawn O. Pearce" <spearce@spearce.org>
Cc: Constantine Plotnikov <constantine.plotnikov@gmail.com>,
	git@vger.kernel.org
Subject: Re: [JGIT PATCH] Fix WindowCacheGetTest.testCache_TooSmallLimit failures
Date: Sun, 26 Jul 2009 01:25:31 +0200	[thread overview]
Message-ID: <200907260125.32306.robin.rosenberg.lists@dewire.com> (raw)
In-Reply-To: <20090725200056.GD11191@spearce.org>

lördag 25 juli 2009 22:00:56 skrev "Shawn O. Pearce" <spearce@spearce.org>:
> Ever since 2d77d30b5f when I rewrote WindowCache we have been seeing
> random failures inside of the TooSmallLimit test case.
> 
> These test failures have been occurring because the cache contained
> more open bytes than it was configured to permit.
> 
> The cache was permitted to open more bytes than its configured limit
> because the eviction routine was always skipping the last bucket
> under some conditions.  If the cache table was sized the same as its
> evictBatch, which happens for any fairly small table, the eviction
> routine broke too early if it started at a non-zero position in the
> table and wrapped around during its search.  By breaking too early
> the routine did not actually perform an eviction, leaving windows
> open it should have closed.

We should have a test for that then.

-- robin

  reply	other threads:[~2009-07-25 23:25 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <85647ef50907220623i2b7e50dal67650a638921ec0f@mail.gmail.com>
2009-07-24 22:51 ` [JGIT] Re: blinking test WindowCacheGetTest.testCache_TooSmallLimit Shawn O. Pearce
2009-07-25 17:34   ` Robin Rosenberg
2009-07-25 19:42     ` Shawn O. Pearce
2009-07-25 20:00       ` [JGIT PATCH] Fix WindowCacheGetTest.testCache_TooSmallLimit failures Shawn O. Pearce
2009-07-25 23:25         ` Robin Rosenberg [this message]
2009-07-25 23:30           ` Shawn O. Pearce

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