On Wed, Feb 07, 2007 at 03:42:57PM +0200, Eero Tamminen wrote: > ext Marius Gedminas wrote: > >Vmstat is useful to see why the tablet is sometimes not responsive > >(e.g. while installing a package), when the CPU applet shows 0% usage. > > But the device becomes responsive again once the package installation > from the MMC completes, right?
Yes. And the pause occurs pretty rarely. I think that's when the jffs2 log fills up and the garbage collector has to kick in. I kept upgrading FBReader after each release, and mostly the upgrade was fast, but sometimes I had to wait several minutes. That was scary the first time it happened. > (If not, what's the MMC/SD card model and manufacturer?) (Package installation writes files into the internal flash. And I install packages downloaded from the internet, not from an MMC card.) > (The answer is a storm of interrupts, dealing with flash memory.) > > Hm. I guess one could monitor these from /proc/interrupts or > /proc/stat, but vmstat is indeed easier... :-) Actually, now that I know this is normal, vmstat is no longer necessary :-) Marius Gedminas -- To err is human... to really foul up requires the root password.
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