Messages in this thread | | | Date | Mon, 14 Aug 2000 18:03:13 +0200 (CEST) | From | Andrea Arcangeli <> | Subject | Re: Degrading disk read performance under 2.2.16 |
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On Mon, 14 Aug 2000, Jens Axboe wrote:
>> I found that increasing the read_latency to match write_latency fixes the >> problems perfectly - thanks for the pointer! > >Ok good. Andrea, could we bump read latency in 2.2.17-pre?
Yes.
>> Increasing the read_latency and write_latency to 10,000,000 results in >> similar throughput, but catastrophic seek performance: > >Odd...
I guess it was the tiotest "Seek" bug that I mentioned in the other email.
>to backup the values chosen. But the current defaults do impose performance >problems, as they did in 2.4, so I think that up'ing read latency is >a good idea.
Agreed.
Andrea
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