Robert Haas wrote:
Greg, have you run into any other evidence suggesting a problem with 2.6.32?
I haven't actually checked myself yet. Right now the only distribution
shipping 2.6.32 usefully is Ubuntu 10.04, which I can't recommend anyone
use on a server because their release schedules a
On 28/09/10 16:59, Robert Haas wrote:
On Mon, Sep 27, 2010 at 11:37 PM, Mark Kirkwood
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, int
On Mon, Sep 27, 2010 at 11:37 PM, Mark Kirkwood
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
On 28/09/10 04:28, Robert Haas wrote:
On Mon, Sep 13, 2010 at 12:05 PM, Greg Smith wrote:
Domas Mituzas wrote:
I've been playing around today a lot with sysbench, and observed that
2.6.32 kernel supplied by Ubuntu is having perf regression with PG (which
does not affect MySQL), compa
On Mon, Sep 13, 2010 at 12:05 PM, Greg Smith wrote:
> Domas Mituzas wrote:
>>
>> I've been playing around today a lot with sysbench, and observed that
>> 2.6.32 kernel supplied by Ubuntu is having perf regression with PG (which
>> does not affect MySQL), compared to 2.6.28 builds I have.
>> What I
Hello,
> Can you run oprofile on the older kernel, so that we can compare and see
> where the time is spent?
> Looks like over 7% of the time is spent in s_lock, which suggests some change
> in behavior in context switching or something like that, but let's see what
> the old profile looks like
On 09/13/2010 06:43 PM, Greg Smith wrote:
Thom Brown wrote:
I thought sysbench was designed for MySQL benchmarks. How new is the
PostgreSQL driver? Is it stable yet?
It's been out there for years; the FreeBSD 7.0 development used it
extensively on MySQL and PostgreSQL to track kernel performan
Thom Brown wrote:
I thought sysbench was designed for MySQL benchmarks. How new is the
PostgreSQL driver? Is it stable yet?
It's been out there for years; the FreeBSD 7.0 development used it
extensively on MySQL and PostgreSQL to track kernel performance on both
databases back in 2007:
On 13 September 2010 17:27, Stefan Kaltenbrunner
wrote:
> On 09/13/2010 06:05 PM, Greg Smith wrote:
>>
>> Domas Mituzas wrote:
>>>
>>> I've been playing around today a lot with sysbench, and observed that
>>> 2.6.32 kernel supplied by Ubuntu is having perf regression with PG
>>> (which does not af
On 09/13/2010 06:05 PM, Greg Smith wrote:
Domas Mituzas wrote:
I've been playing around today a lot with sysbench, and observed that
2.6.32 kernel supplied by Ubuntu is having perf regression with PG
(which does not affect MySQL), compared to 2.6.28 builds I have.
What I observed can be seen in
Domas Mituzas wrote:
I've been playing around today a lot with sysbench, and observed that 2.6.32
kernel supplied by Ubuntu is having perf regression with PG (which does not
affect MySQL), compared to 2.6.28 builds I have.
What I observed can be seen in a paste at http://p.defau.lt/?8_GQV82Pz3_
On 12/09/10 23:31, Domas Mituzas wrote:
I've been playing around today a lot with sysbench, and observed that 2.6.32
kernel supplied by Ubuntu is having perf regression with PG (which does not
affect MySQL), compared to 2.6.28 builds I have.
What I observed can be seen in a paste at
http://p.d
Hello folks,
I've been playing around today a lot with sysbench, and observed that 2.6.32
kernel supplied by Ubuntu is having perf regression with PG (which does not
affect MySQL), compared to 2.6.28 builds I have.
What I observed can be seen in a paste at
http://p.defau.lt/?8_GQV82Pz3_SDZbNOdP
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