[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <200711050758.38090.a1426z@gawab.com>
Date: Mon, 5 Nov 2007 07:58:38 +0300
From: Al Boldi <a1426z@...ab.com>
To: linux-fsdevel@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: Massive slowdown when re-querying large nfs dir
There is a massive (3-18x) slowdown when re-querying a large nfs dir (2k+
entries) using a simple ls -l.
On 2.6.23 client and server running userland rpc.nfs.V2:
first try: time -p ls -l <2k+ entry dir> in ~2.5sec
more tries: time -p ls -l <2k+ entry dir> in ~8sec
first try: time -p ls -l <5k+ entry dir> in ~9sec
more tries: time -p ls -l <5k+ entry dir> in ~180sec
On 2.6.23 client and 2.4.31 server running userland rpc.nfs.V2:
first try: time -p ls -l <2k+ entry dir> in ~2.5sec
more tries: time -p ls -l <2k+ entry dir> in ~7sec
first try: time -p ls -l <5k+ entry dir> in ~8sec
more tries: time -p ls -l <5k+ entry dir> in ~43sec
Remounting the nfs-dir on the client resets the problem.
Any ideas?
Thanks!
--
Al
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists