Re: fstat vs. lseek
От | Andres Freund |
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Тема | Re: fstat vs. lseek |
Дата | |
Msg-id | 3363559.QMgrzrjf7W@alap2 обсуждение исходный текст |
Ответ на | Re: fstat vs. lseek (Robert Haas <robertmhaas@gmail.com>) |
Ответы |
Re: fstat vs. lseek
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Список | pgsql-hackers |
On Monday, August 08, 2011 13:19:13 Robert Haas wrote: > On Mon, Aug 8, 2011 at 1:10 PM, Andres Freund <andres@anarazel.de> wrote: > > There doesn't seem to have been any activity to inlude it in 3.1. The > > merge window for 3.1 just ended. The next one will open for about a > > week after the release. > > Its also not yet included in linux-next which is a "preview" for the > > currently worked on release + 1. A release takes roughly 3 months. > > OK. If it doesn't get into Linux 3.2 we had better start thinking > hard about a workaround on our side. If its ok I will write a mail to lkml referencing this thread and your numbers inline (with attribution obviously). I don't think it will be that hard to convince them. But I constantly surprise myself with naivity so I may be wrong. > > My largest machine I can reboot often enough to test such a thing has only > > two sockets (4cores E5520). I guess you cannot reboot your loaned machine > > with a new kernel easily? >Not really. I do have root access to a 64-core box at the moment, and >I could probably get permission to reboot it, but if it didn't come >back on-line that would be awkward. As I feared. Any chance that the person lending you the machine can give you a hand? Although I don't know how that could be after reading the code it would be disappointing to wait for 3.2 with the llseek fixes appearing in $distribution just to notice fstat is still faster for $unobvious_reason... Andres
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