Am 10/20/14 um 19:36 schrieb Josh Grosse: > On 2014-10-20 13:16, Stefan Wollny wrote: >> Hi there! >> >> Still investigating some strange behaviour I run >> ~ $ sudo systat states >> >> Scrolling some pages to the right I get some information related to >> 'devices' (I reformatted the page showing the last column underneath the >> first columns for better readability): >> >> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> 1 users Load 1.21 1.31 1.37 Mon Oct 20 18:54:43 2014 >> >> DEVICE READ WRITE RTPS WTPS SEC >> wd0 0 0 0 0 0.0 >> sd0 65536 39321 1 1 0.0 >> Totals 65536 39321 1 1 0.0 >> >> >> >> STATS >> 152169 total pages >> 84 dirty pages >> 11 delwri bufs >> 0 busymap bufs >> 6553 avail kvaslots >> 6553 kvaslots >> 0 pending writes >> 0 pending reads >> 2139 cache hits >> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> >> >> DIRTY pages??? >> >> I checked with 'man systat' and googled for 'systat dirty pages'. For >> some FreeBSD-VM I found a hint on "dirty pages (inactive queue)" and >> "clean pages (cache queue)". > > See http://en.wikipedia.org/wiki/Page_cache for a definition. This is > virtual memory management jargon. > Excellent - even _I_ got an idea what is is about.
Thank's a lot, Josh, for your quick reply! All the best, STEFAN
