[zfs-code] lock contention in prefetch

2009-08-18 Thread Andrey Kuzmin
The patch itself seems to be "purely opportunistic" :), hence two questions: 1. How does it impact prefetch efficiency? 2. If it does impact prefetch significantly, is there any other, less destructive, locking approach? Regards, Andrey On Tue, Aug 18, 2009 at 2:52 AM, Kip Macy wrote: > I have

[zfs-code] lock contention in prefetch

2009-08-18 Thread Kip Macy
On Tue, Aug 18, 2009 at 03:01, Andrey Kuzmin wrote: > The patch itself seems to be "purely opportunistic" :), hence two questions: > 1. How does it impact prefetch efficiency? On my workloads it does not. Whereas lock contention with multiple threads accessing a file is quite high. > 2. If it do

[zfs-code] NetBSD zfs port

2009-08-18 Thread haad
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