Hi to All I defined 2G for swap space in installation solaris 10 with zfs file system,,but when i run vmstat it shows about 3G is free!.why this happend?! My Real memory is 4G. Can anybody guide this,,im confused! # vmstat 10 kthr memory page disk faults cpu r b w swap free re mf pi po fr de sr s6 sd sd sd in sy cs us sy id 0 0 0 3875248 2385176 0 1 0 0 0 0 0 -0 -0 -0 2 1764 38933 10834 29 36 36 1 0 0 3590808 2091536 1 2 0 0 0 0 0 0 0 0 0 2316 57731 14530 43 53 4 0 0 0 3590824 2091616 0 0 0 0 0 0 0 0 0 0 2 2176 57499 14528 43 52 5 0 0 0 3590816 2091608 0 0 0 0 0 0 0 0 0 0 0 2417 57756 14481 43 52 5 1 0 0 3590808 2091600 0 0 0 0 0 0 0 0 0 0 0 2525 57154 14249 44 53 3 0 0 0 3590808 2091600 0 0 0 0 0 0 0 0 0 0 2 2964 57376 14483 43 53 4 ^C # zpool list NAME SIZE USED AVAIL CAP HEALTH ALTROOT rpool 68G 6.67G 61.3G 9% ONLINE - # zfs list NAME USED AVAIL REFER MOUNTPOINT rpool 8.67G 58.3G 94K /rpool rpool/ROOT 4.61G 58.3G 18K legacy rpool/ROOT/s10s_u6wos_07b 4.61G 58.3G 4.38G / rpool/ROOT/s10s_u6wos_07b/var 230M 58.3G 230M /var rpool/dump 1.00G 58.3G 1.00G - rpool/export 1.06G 58.3G 20K /export rpool/export/home 1.06G 58.3G 1.06G /export/home rpool/swap 2G 60.3G 16K - Regards -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20090307/ca5f176c/attachment.html>
max at bruningsystems.com
2009-Mar-07 09:59 UTC
[zfs-discuss] Real Swap space & vmstat output
Hi, iman habibi wrote:> Hi to All > > I defined 2G for swap space in installation solaris 10 with zfs file > system,,but when i run vmstat it shows about 3G is free!.why this > happend?! > My Real memory is 4G. > Can anybody guide this,,im confused! > > > # vmstat 10 > kthr memory page disk faults cpu > r b w swap free re mf pi po fr de sr s6 sd sd sd in sy cs > us sy id > 0 0 0 3875248 2385176 0 1 0 0 0 0 0 -0 -0 -0 2 1764 38933 > 10834 29 36 36 > 1 0 0 3590808 2091536 1 2 0 0 0 0 0 0 0 0 0 2316 57731 > 14530 43 53 4 > 0 0 0 3590824 2091616 0 0 0 0 0 0 0 0 0 0 2 2176 57499 > 14528 43 52 5 > 0 0 0 3590816 2091608 0 0 0 0 0 0 0 0 0 0 0 2417 57756 > 14481 43 52 5 > 1 0 0 3590808 2091600 0 0 0 0 0 0 0 0 0 0 0 2525 57154 > 14249 44 53 3 > 0 0 0 3590808 2091600 0 0 0 0 0 0 0 0 0 0 2 2964 57376 > 14483 43 53 4 > ^C > # zpool list > NAME SIZE USED AVAIL CAP HEALTH ALTROOT > rpool 68G 6.67G 61.3G 9% ONLINE - > # zfs list > NAME USED AVAIL REFER MOUNTPOINT > rpool 8.67G 58.3G 94K /rpool > rpool/ROOT 4.61G 58.3G 18K legacy > rpool/ROOT/s10s_u6wos_07b 4.61G 58.3G 4.38G / > rpool/ROOT/s10s_u6wos_07b/var 230M 58.3G 230M /var > rpool/dump 1.00G 58.3G 1.00G - > rpool/export 1.06G 58.3G 20K /export > rpool/export/home 1.06G 58.3G 1.06G /export/home > rpool/swap 2G 60.3G 16K -A short answer is that the swap column from vmstat is showing the amount of free space usable for anonymous memory. This includes free space on disk plus usable space in memory. You should also take a look at "swap -lh" and "swap -sh" output. max> > Regards > ------------------------------------------------------------------------ > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >