<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">When I run <b>apt-get upgrade</b>, the top command tells me wa (time spent waiting for SD card IO) can sit at 95%. SD cards seem to have appalling write speeds. <div><br></div><div>That's just too bad, according to</div><div><br></div><div><div>Are you using any trick to make big write jobs less awful? </div><div><br></div></div><div>no swap, more tmpfs, perhaps a different file system altogether? </div><div><br></div><div>(good notes on flash file systems at <a href="http://superuser.com/questions/248078/choice-of-filesystem-for-gnu-linux-on-an-sd-card">http://superuser.com/questions/248078/choice-of-filesystem-for-gnu-linux-on-an-sd-card</a>)</div><div><br></div><div>And what about apps? Do you use the memory engine with mysql? Something clever with /var? </div><div><br></div></body></html>