>
> As I understand the issue, a readdirplus is
> 2X slower when data is already cached in the client
> than when it is not.
Yes, that's the issue. It's not always 2X slower, but ALWAYS SLOWER.
My another 2runs on NFS/ZFS show:
1. real 3:14.185
user 2.249
sys 33.083
2. real 4:47.681
user 2.578
sys 40.733
>
> Given that the on-disk structure does not change
> between the
> 2 runs, I can't really place the fault on it.
You mixed two different tests described in this thread: first is spec.org SFS
that shows the bad results on NFS/ZFS even after reboot and second is our own
"rdir" that was written to understand the SFS problem and exposed the
weird/erroneous behaviour of NFS/ZFS combination.
Thank you for your attention.
[i]-- leon[/i]
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