Messages in this thread | | | Date | Fri, 29 Jun 2001 02:39:00 -0700 | From | Dan Kegel <> | Subject | O_DIRECT please; Sybase 12.5 |
| |
At work I had to sit through a meeting where I heard the boss say "If Linux makes Sybase go through the page cache on reads, maybe we'll just have to switch to Solaris. That's a serious performance problem." All I could say was "I expect Linux will support O_DIRECT soon, and Sybase will support that within a year."
Er, so did I promise too much? Andrea mentioned O_DIRECT recently ( http://marc.theaimsgroup.com/?l=linux-kernel&m=99253913516599&w=2, http://lwn.net/2001/0510/bigpage.php3 ) Is it supported yet in 2.4, or is this a 2.5 thing?
And what are the chances Sybase will support that flag any time soon? I just read on news://forums.sybase.com/sybase.public.ase.linux that Sybase ASE 12.5 was released today, and a 60 day eval is downloadable for NT and Linux. I'm downloading now; it's a biggie.
It supports raw partitions, which is good; that might satisfy my boss (although the administration will be a pain, and I'm not sure whether it's really supported by Dell RAID devices). I'd prefer O_DIRECT :-(
Hope somebody can give me encouraging news.
Thanks, Dan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |