Apache a sendfile

[Jan Kasprzak]

	Zdravim,

snazim se pred zverejnenim Fedory 7 vyoptimalizovat Apache tak,
aby pokud mozno prenasel velke soubory pres sendfile(2), ale mam s tim
nejaky problem: podle strace toho Apache moc neprenese a sendfile()
se stejne vola po malych kouscich - tady je kus strace -tt:

18:05:02.388711 sendfile(11, 12, [425122920], 3100072856) = 195480
18:05:02.388951 poll([{fd=11, events=POLLOUT, revents=POLLOUT}], 1, 120000) = 1
18:05:02.391883 sendfile(11, 12, [425318400], 3099877376) = 195480
18:05:02.392159 poll([{fd=11, events=POLLOUT, revents=POLLOUT}], 1, 120000) = 1
18:05:02.395060 sendfile(11, 12, [425513880], 3099681896) = 195480
18:05:02.395279 poll([{fd=11, events=POLLOUT, revents=POLLOUT}], 1, 120000) = 1
18:05:02.398020 sendfile(11, 12, [425709360], 3099486416) = 195480
18:05:02.398253 poll([{fd=11, events=POLLOUT, revents=POLLOUT}], 1, 120000) = 1
18:05:02.401230 sendfile(11, 12, [425904840], 3099290936) = 195480
18:05:02.401456 poll([{fd=11, events=POLLOUT, revents=POLLOUT}], 1, 120000) = 1
18:05:02.404867 sendfile(11, 12, [426100320], 3099095456) = 195480
18:05:02.405033 poll([{fd=11, events=POLLOUT, revents=POLLOUT}], 1, 120000) = 1

Pritom kdyz podobne strace pustim na proftpd, tak tam je videt,
ze proftpd par minut visi v tom sendfile() a za tu dobu odvysila treba
cely ISO image CDcka. Funguje vam nekomu sendfile() v Apache lepe nez
u me?

	Diky,

-Y.

-- 
| Jan "Yenya" Kasprzak  <kas at {fi.muni.cz - work | yenya.net - private}> |
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| http://www.fi.muni.cz/~kas/    Journal: http://www.fi.muni.cz/~kas/blog/ |
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