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From:Colin Charles Date:January 13 2010 5:01am
Subject:Re: High kernel time with MariaDB on Fedora 11
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Hi!

Is this still something you're facing?

Are you still testing out MariaDB?

	Cheers,
	-c

On 16/11/2009 15:42, Fang, Xiang wrote:
> Hi all,
>
> I tried to run Sysbench/Readonly workload with MariaDB 5.1.38 (using maria storage
> engine) on Fedora 11 (linux 2.6.29 x86_64 kernel) and I found the kernel time is higher to
> about 70%, so the performance was very bad. If we run Mysql 5.4.1-beta (using innodb
> storage engine), the kernel time is only about 10% and performance of Sysbench/Readonly is
> about 9x than MariaDB 5.1..38.
>
> The oprofile data showed that the hottest method in kernel is __ticket_spin_lock with
> MariaDB.
>
> I also tried run on Redhat EL5.2 before, but it failed since MariaDB 5.1.38 need
> glibc 2.7 above and RHEL 5.2 only has glibc2.5.
>
> Does anyone meet the same issue or not? I want to know what is the prefer OS and
> configuration for MariaDB for performance evaluation.
>
> Thanks very much,
> Xiang
>


-- 
Colin Charles, http://bytebot.net/blog/
"First they ignore you, then they laugh at you, then they fight you, 
then you win." -- Mohandas Gandhi
Thread
High kernel time with MariaDB on Fedora 11Xiang Fang16 Nov
  • Re: High kernel time with MariaDB on Fedora 11Colin Charles13 Jan