|
ru.unix.bsd
- RU.UNIX.BSD ------------------------------------------------------------------
From : Slawa Olhovchenkov 2:5030/500 08 Feb 2004 16:24:44
To : All
Subject : sendfile again
--------------------------------------------------------------------------------
silby 2004/02/07 23:35:48 PST
FreeBSD src repository
Modified files:
sys/kern uipc_syscalls.c
sys/sys socket.h
Log:
Add the SF_NODISKIO flag to sendfile. This flag causes sendfile to be
mindful of blocking on disk I/O and instead return EBUSY when such
blocking would occur.
Results from the DeBox project indicate that blocking on disk I/O
can slow the performance of a kqueue/poll based webserver. Using
a flag such as SF_NODISKIO and throwing connections that would block
to helper processes/threads helped increase performance.
Currently, only the Flash webserver uses this flag, although it could
probably be applied to thttpd with relative ease.
Idea by: Yaoping Ruan & Vivek Pai
... Автомат работает так: раз, два, три - и вас нет!
--- GoldED+/BSD 1.1.5
* Origin: (2:5030/500)
Вернуться к списку тем, сортированных по: возрастание даты уменьшение даты тема автор
|
