Re: Postal 56% waits for flock_lock_file_wait

[Alan Cox]

Ar Llu, 2006-10-02 am 13:11 -0400, ysgrifennodd Trond Myklebust:
> Ext3 does not use flock() in order to lock its journal. The performance
> issues that he is seeing may well be due to the journalling, but that
> has nothing to do with flock_lock_file_wait.

The ext3 journal also generally speaking improves many-writer
performance as do the reservations so the claim seems odd on that basis
too. Rerun the test on a gigabyte iRam or similar and you'll see where
the non-media bottlenecks actually are

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