[Users] slow fsync rate

[Dietmar Maurer]

Hi all,

we observe very slow fsync rates on newer 2.6.32 kernel with OpenVZ:

It is possible to reproduce the problem with sysbench:

# sysbench --test=fileio --file-num=1 --file-total-size=50G --file-fsync-all=on --file-test-mode=seqrewr --max-time=100 --file-block-size=4096 --max-requests=0 run

Requests/sec executed is considerable slower on OpenVZ kernel (factor 20 on Intel Modular Server).

Can someone reproduce that problem?

- Dietmar


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