Messages in this thread | | | Date | Mon, 25 Jul 2005 14:02:19 -0400 | From | Bill Davidsen <> | Subject | Re: Kernel cached memory |
| |
Paolo Ornati wrote:
>On Mon, 25 Jul 2005 12:47:50 -0400 >Bill Davidsen <davidsen@tmr.com> wrote: > > > >>And IMHO Linux is *way* too willing to evicy clean pages of my >>programs to use as disk buffer, so that when system memory is full I >>pay the overhead of TWO disk i/o's, one to finally write the data to >>the disk and one to read my program back in. If free software is >>about choice, I wish there was more in the area of how memory is >>used. >> >> > >isn't this tuned enough by "/proc/sys/vm/swappiness" ? > > > Let me generate some data points for discussion. But the general answer is no, I just want to try to have some numbers to discuss. I also want to go back to some 2.4.xx-aa kernels, Andrea had some very nice things in his bdflush code, and he was kind enough to explain to me how to tune them so I avoided the worst case events.
-- bill davidsen <davidsen@tmr.com> CTO TMR Associates, Inc Doing interesting things with small computers since 1979
- 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/
| |