Messages in this thread | | | From | "Roger Heflin" <> | Subject | RE: buffer cache question | Date | Mon, 19 Dec 2005 12:15:28 -0600 |
| |
> -----Original Message----- > From: linux-kernel-owner@vger.kernel.org > [mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of JaniD++ > Sent: Sunday, December 18, 2005 3:09 PM > To: linux-kernel@vger.kernel.org > Subject: buffer cache question > > Hello, list, > > I use 4 disk nodes with NBD. > All of my nodes have 2GB ram. > > But the buffer cache newer rise over 830MB. > > Is there some limit?
For writes only 40% of the ram can be "dirty".
> Where can i change this limit? (if it is)
I believe there is a way to change it, I am pretty sure that it has been discussed on the kernel list a couple of months ago, I don't remember exactly what the change is, and I think the change was more complicated that was obvious.
The previous subject on a similar thing was: "kernel 2.6.13 buffer strangeness"
Roger
> > Thanks, > Janos > > [root@st-0001 root]# free > total used free shared > buffers cached > Mem: 2073152 933188 1139964 0 > 836776 43416 > -/+ buffers/cache: 52996 2020156 > Swap: 0 0 0 > [root@st-0001 root]# cat /proc/meminfo > MemTotal: 2073152 kB > MemFree: 1139012 kB > Buffers: 835928 kB > Cached: 43448 kB > SwapCached: 0 kB > Active: 12872 kB > Inactive: 871424 kB > HighTotal: 1179584 kB > HighFree: 1129764 kB > LowTotal: 893568 kB > LowFree: 9248 kB > SwapTotal: 0 kB > SwapFree: 0 kB > Dirty: 0 kB > Writeback: 0 kB > Mapped: 9104 kB > Slab: 30248 kB > CommitLimit: 1036576 kB > Committed_AS: 15428 kB > PageTables: 408 kB > VmallocTotal: 114680 kB > VmallocUsed: 196 kB > VmallocChunk: 114476 kB > [root@st-0001 root]# > > - > 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/ >
- 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/
| |