> >This command I show'd was during the postmap, in another tty, at the time of >the WUPG alert. >But the new telnet/ssh also showed slowly, even a 'man' was sloooow down.
># uptime > 9:13AM up 188 days, 34 mins, 2 users, load averages: 0.09, 0.30, 0.20 so the machine isn't loaded >... >CPU: Pentium II/Pentium II Xeon/Celeron (348.21-MHz 686-class CPU) > Origin = "GenuineIntel" Id = 0x652 Stepping = 2 while this machine is fine for low volumes and IMGAte only, it can be slow with highvolumes, lots of POSIX regex scanning, plus whatever but 15+ minutes for postmap is still way too long >uring the postmap, is: > >-------------------------------------------------------------------- ># iostat -c 40 > tty mlxd0 cd0 sa0 cpu > tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy in id > 0 1 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 4 0 1 0 94 > 0 77 18.18 66 1.17 0.00 0 0.00 0.00 0 0.00 0 0 5 0 95 > 0 37 17.27 83 1.41 0.00 0 0.00 0.00 0 0.00 0 1 3 0 96 > 0 76 16.79 80 1.31 0.00 0 0.00 0.00 0 0.00 0 0 2 0 98 > 0 76 16.80 99 1.62 0.00 0 0.00 0.00 0 0.00 0 0 2 0 98 > 0 76 16.96 66 1.10 0.00 0 0.00 0.00 0 0.00 0 1 5 0 94 ok, I think you problem is there. the disk is very active (CPU not because it's waiting on disk) but I don't know why postmap would add so much i/o. >a few minutes before the postmap, was: >-------------------------------------------------------------------- ># iostat -c 40 > tty mlxd0 cd0 sa0 cpu > tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy in id > 0 1 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 4 0 1 0 94 > 0 76 2.00 1 0.00 0.00 0 0.00 0.00 0 0.00 2 0 3 0 95 > 0 76 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 1 0 2 0 98 > 0 76 5.67 36 0.20 0.00 0 0.00 0.00 0 0.00 2 0 3 0 95 > 0 76 16.00 2 0.03 0.00 0 0.00 0.00 0 0.00 8 0 2 0 91 > 0 76 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 0100 > 0 76 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 2 0 1 0 97 > 0 76 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 5 0 1 0 95 > 0 76 9.75 8 0.08 0.00 0 0.00 0.00 0 0.00 22 0 4 0 74 > 0 76 16.00 13 0.20 0.00 0 0.00 0.00 0 0.00 33 0 4 2 61 > 0 76 14.00 22 0.30 0.00 0 0.00 0.00 0 0.00 27 0 8 2 62 > 0 76 15.08 24 0.35 0.00 0 0.00 0.00 0 0.00 41 0 5 2 51 > 0 76 13.04 25 0.32 0.00 0 0.00 0.00 0 0.00 88 0 10 2 0 > 0 75 12.73 40 0.50 0.00 0 0.00 0.00 0 0.00 89 0 10 2 0 > 0 76 13.67 48 0.64 0.00 0 0.00 0.00 0 0.00 73 0 23 4 0 > 0 74 11.56 35 0.39 0.00 0 0.00 0.00 0 0.00 81 0 18 1 0 > 0 76 12.55 33 0.40 0.00 0 0.00 0.00 0 0.00 87 0 12 1 0 > 0 67 13.68 32 0.43 0.00 0 0.00 0.00 0 0.00 88 0 11 1 0 > 0 75 14.16 36 0.50 0.00 0 0.00 0.00 0 0.00 84 0 13 3 0 > 0 74 10.04 91 0.90 0.00 0 0.00 0.00 0 0.00 82 0 15 3 0 > tty mlxd0 cd0 sa0 cpu > tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy in id > 0 221 16.60 41 0.67 0.00 0 0.00 0.00 0 0.00 85 0 13 2 0 > 0 76 14.43 60 0.84 0.00 0 0.00 0.00 0 0.00 77 0 20 3 0 > 0 76 15.14 28 0.41 0.00 0 0.00 0.00 0 0.00 86 0 12 2 0 > 0 76 19.00 30 0.55 0.00 0 0.00 0.00 0 0.00 27 0 14 2 57 > 0 76 13.83 23 0.31 0.00 0 0.00 0.00 0 0.00 41 0 8 0 51 > 0 76 14.00 11 0.15 0.00 0 0.00 0.00 0 0.00 3 0 9 1 88 > 0 76 27.33 6 0.16 0.00 0 0.00 0.00 0 0.00 2 0 5 2 90 > 0 76 64.00 1 0.06 0.00 0 0.00 0.00 0 0.00 3 0 5 0 91 > 0 76 23.38 13 0.29 0.00 0 0.00 0.00 0 0.00 0 0 4 2 95 > 0 76 64.00 1 0.06 0.00 0 0.00 0.00 0 0.00 2 0 3 1 95 > 0 76 19.09 11 0.20 0.00 0 0.00 0.00 0 0.00 22 0 1 2 75 > 0 76 22.29 7 0.15 0.00 0 0.00 0.00 0 0.00 5 0 5 3 87 > 0 76 29.67 6 0.17 0.00 0 0.00 0.00 0 0.00 5 0 2 3 91 > 0 76 40.00 2 0.08 0.00 0 0.00 0.00 0 0.00 2 0 3 1 94 > 0 76 18.50 16 0.29 0.00 0 0.00 0.00 0 0.00 31 0 3 1 65 > 0 76 15.18 22 0.32 0.00 0 0.00 0.00 0 0.00 27 0 8 2 63 > 0 76 64.00 2 0.12 0.00 0 0.00 0.00 0 0.00 5 0 5 0 89 > 0 76 64.00 1 0.06 0.00 0 0.00 0.00 0 0.00 2 0 2 3 93 > 0 76 22.00 6 0.13 0.00 0 0.00 0.00 0 0.00 2 0 1 2 96 > 0 76 64.00 2 0.12 0.00 0 0.00 0.00 0 0.00 2 0 2 2 95 you can your disk can stay quite busy even without postmap. So I think the disk is quite loaded. can you stop squid for 20 minutes to see if it's disk i/o is the problem? Len
