Messages in this thread | | | Subject | Re: Change in default vm_dirty_ratio | From | Andi Kleen <> | Date | 19 Jun 2007 21:57:44 +0200 |
| |
Andrew Morton <akpm@linux-foundation.org> writes: > > It seems too large. Memory sizes are going up faster than disk throughput > and it seems wrong to keep vast amounts of dirty data floating about in > memory like this. It can cause long stalls while the system writes back > huge amounts of data and is generally ill-behaved.
A more continuous write out would be better I think. Perhaps the dirty ratio needs to be per address space?
> things are trivially tunable and you'd think that after all these years, > distro initscripts would be establishing the settings, based upon expected > workload, amount of memory, number and bandwidth of attached devices, etc.
Distro initscripts normally don't have any better clue about any of this than the kernel.
-Andi - 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/
| |