| From: | Mark Kirkwood <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Perf regression in 2.6.32 (Ubuntu 10.04 LTS) |
| Date: | 2010-09-28 04:16:41 |
| Message-ID: | 4CA16C29.40405@catalyst.net.nz |
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| Lists: | pgsql-hackers |
On 28/09/10 16:59, Robert Haas wrote:
> On Mon, Sep 27, 2010 at 11:37 PM, Mark Kirkwood
> <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz> wrote:
>
>> Greg, have you run into any other evidence suggesting a problem with 2.6.32?
>>
>> Not Greg (sorry), but this might be worth a look:
>>
>> http://www.spinics.net/lists/linux-ext4/msg20299.html
>>
> Oh, interesting. But why wouldn't that also affect MySQL?
>
>
Yeah, wondered that myself - perhaps if sysbench is using myisam tables
then there is probably no fsync activity at all for a read only
workload. Be interesting to see if Mysql suffers a hit for sysbench
configured to use innodb storage...
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