18 May
2011
18 May
'11
1:53 p.m.
Hi,
On Tue, May 17, 2011 at 5:53 PM, Tom Gall tom.gall@linaro.org wrote:
Hi All,
From UDS last week I was inspired to run bootchart on our Linaru Ubuntu-desktop LEB.
I collected the data on my panda board using the daily snapshot from last week.
From a very quick examination of the output, it would seem we are IO bound.
I've created a quick wiki page about BootChart and attached the data I've gathered.
Interesting.
Due to the poor I/O throughput, it looks a bit like we might be hitting the known SD card write behaviour issues; mounting with noatime and/or journaling disabled (noload for ext4) might also make a difference.
I wonder how a rotary disk attached to USB would compare...
---Dave