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Tons of empty transactions

To: linux-xfs@xxxxxxxxxxx
Subject: Tons of empty transactions
From: KELEMEN Peter <fuji@xxxxxxx>
Date: Mon, 27 May 2002 00:56:57 +0200
Mail-followup-to: linux-xfs@xxxxxxxxxxx
Organization: ELTE Eotvos Lorand University of Sciences, Budapest, Hungary
Reply-to: KELEMEN Peter <fuji@xxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
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XFS fellows,

The other day I was lurking around on several machines of mine and
on one of them I found the following:

    xs_trans_sync........         16615 (  1.1480%)
    xs_trans_async.......        298806 ( 20.6458%)
    xs_trans_empty.......       1131876 ( 78.2062%)

in other words, four-fifth of XFS transactions are empty.  The
machine has light load and this was observed after approx. 80 days
uptime.  What could be the reason for such high number of empty
transactions? (no sources at hand to check for myself)


    .+'''+.         .+'''+.         .+'''+.         .+'''+.         .+''
 Kelemen Péter     /       \       /       \       /      fuji@xxxxxxx
.+'         `+...+'         `+...+'         `+...+'         `+...+'

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