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Re: FreeBSD disk AIO support
- To: nginx-ru@xxxxxxxxx
- Subject: Re: FreeBSD disk AIO support
- From: Andrei Nigmatulin <andrei.nigmatulin@xxxxxxxxx>
- Date: Mon, 24 Aug 2009 18:38:59 +0400
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On Monday 24 August 2009 13:16, Igor Sysoev wrote:
> On Mon, Aug 24, 2009 at 04:35:26AM +0400, Andrei Nigmatulin wrote:
> > Похоже, что libaio >= 0.3.107 имеет поддержку eventfd (патч добавил Rusty
> > Russell) и искомые поля есть в io_iocb_common.
>
> Похоже, в openSUSE 11.1 libaio-0.4:
> > objdump -T /lib/libaio.so.1.0.1
Нет, 0.4 в данном месте, это версия abi библиотеки libaio:
Makefile: -Wl,--version-script=libaio.map
А в opensuse 11.1 стоит версия 0.3.104. Убедиться просто - в libaio.h нет
такого:
static inline void io_set_eventfd(struct iocb *iocb, int eventfd)
{
iocb->u.c.flags |= (1 << 0) /* IOCB_FLAG_RESFD */;
iocb->u.c.resfd = eventfd;
}
>
> /lib/libaio.so.1.0.1: file format elf32-i386
>
> DYNAMIC SYMBOL TABLE:
> 00000780 g DF .text 00000030 (LIBAIO_0.1) io_cancel
> 000004c0 g DF .text 00000040 LIBAIO_0.4 io_queue_wait
> 00000720 g DF .text 00000057 (LIBAIO_0.1) io_queue_wait
> 00000660 g DF .text 0000001a LIBAIO_0.4 io_cancel
> 000006a0 g DF .text 00000012 LIBAIO_0.4 io_destroy
> 00000460 g DF .text 00000037 LIBAIO_0.1 io_queue_init
> 000006c0 g DF .text 00000057 (LIBAIO_0.1) io_getevents
> 000004a0 g DF .text 00000020 LIBAIO_0.1 io_queue_release
> 000005c0 g DF .text 0000007d LIBAIO_0.4 io_getevents
> 00000000 g DO *ABS* 00000000 LIBAIO_0.1 LIBAIO_0.1
> 00000500 g DF .text 00000074 LIBAIO_0.1 io_queue_run
> 00000640 g DF .text 0000001a LIBAIO_0.1 io_submit
> 00000680 g DF .text 00000016 LIBAIO_0.4 io_setup
> 00000000 g DO *ABS* 00000000 LIBAIO_0.4 LIBAIO_0.4
--
Andrei Nigmatulin
GPG PUB KEY 6449830D
Now I lay me down to sleep(3)
Pray the OS my core to keep
If I die before I wake
Pray the Disk my core to take
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