Re: mosbench revisited
| От | Robert Haas |
|---|---|
| Тема | Re: mosbench revisited |
| Дата | |
| Msg-id | CA+TgmoYYzv1xxCfhtWYcuuMLitmVRZ58-Zhy0NtrcEY0k+oq+A@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: mosbench revisited (Aidan Van Dyk <aidan@highrise.ca>) |
| Список | pgsql-hackers |
On Thu, Aug 4, 2011 at 5:09 PM, Aidan Van Dyk <aidan@highrise.ca> wrote: > On Wed, Aug 3, 2011 at 5:04 PM, Robert Haas <robertmhaas@gmail.com> wrote: > >> And hoping that the Linux guys decide to do something about it. >> This isn't really our bug - lseek is quite cheap in the uncontended >> case. > > Has anyone tried this on a recent kernel (i.e. 2.6.39 or later), where > they've finally remove the BKL out of VFS/inode? > > I mean, complaining about scalability in linux 2.6.18 is like > complaining about scalability in postgresql 8.2 ;-) Hmm. This machine is running 2.6.32-131.6.1.el6.x86_64, not 2.6.18. Not sure how much the code has changed since then, but the spinlock is there in the master branch of Linus's repository. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
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