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.
