(05.03.21 kl.15:03) Gabriel Granger skrev följande till Timo Sirainen:
I will set that option tonight and see how what happens when my users login tomorrow morning. With regards to the load of the server its about 0.03 at present and when a user complained about "Loading messages" about 30mins ago, I checked the server and it was abut the same. I'm really not sure how to see the load of the HD's from the console or even what I could compare it against.
Mem: 1035180k total, 1014672k used, 20508k free, 33556k buffers Swap: 1052216k total, 0k used, 1052216k free, 920644k cached
I notice the server is using a lot of real memory but with loads of swap available for use if thats of any use. When I used to use UW-IMAP i used to get a lot more CPU load which has since disappear now that I'm using Dovecot.
The use of real memory is no good indicator since the OS will use as much as possible for buffers. If the system starts using swap in a big way then this is a good indication that you are running out of memory or I/O.
To see a general system load (in Linux) use vmstat. root# vmstat 5 10|cut -c 8- ----------memory---------- ---swap-- -----io---- --system-- ----cpu---- swpd free buff cache si so bi bo in cs us sy id wa 12 57104 50004 1813592 0 0 1 0 1 1 3 1 93 4 12 16288 50064 1855692 0 0 8429 536 1439 1252 3 1 88 8 12 39288 50100 1833692 0 0 5026 973 1375 1048 4 2 88 7 12 13332 49700 1858300 0 0 17262 905 1762 889 17 2 71 10 12 90096 49860 1781368 0 0 35019 1434 1801 1791 13 3 60 24
Of special interest is si, so, bi, bo, wa. so: Amount of memory swapped to disk (/s). wa: Time spent waiting for IO. (There are other info to get via vmstat too. Use man :)
Cheers, Jens
'This mail automatically becomes portable when carried.' Jens Låås Email: jens.laas@data.slu.se
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