Messages in this thread | | | From | vda <> | Subject | Re: 2.4.>=13 VM/kswapd/shmem/Oracle issue (was Re: Google's mm problems) | Date | Fri, 9 Nov 2001 22:39:11 +0000 |
| |
On Friday 09 November 2001 09:38, Ken Brownfield wrote:
> We're seeing an easily reproducible problem that I believe to be along > the same lines as what Google is seeing. I'm not sure if Oracle's SGA > (shmem) can be mlock()ed, but I'm guessing there's a state analogous to > Solaris' ISM. We're seeing this on a 4GB machine with HIGHMEM/HIGHMEM4G > set, using 2.4.1{3,4,5-pre1}.
[SNIP]
Oracle is a horrendous memory hog. Looks like it's getting more bloated with each next release.
If I will start some seriuos database programming, I will try PostgreSQL first... it is at least Open Source, we can see what's inside.
> Basically, this problem makes it impossible to run Oracle on Linux, > which is really a massive problem from our point of view. If someone > could show me how to provide more useful information or further debug > this problem, I would greatly appreciate it. This includes specific > alternate kernels, or perhaps without HIGHMEM4G or HIGHMEM.
Whee, looks like you guys really willing to resolve this... Pity I can't do anything for you. Let's hope some VM folks will be interested. -- vda - 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/
| |