I've been having the same problem. But only on one of my machines. So, on a hunch, I quit thunderbird, deleted the global-messages-db.sqlite, relaunched thunderbird and let it reindex from scratch. After some minutes, the indexing was finished and the cpu usage by thunderbird returned to zero. Everything seems fine now.
Hope this might work for you?? I'm going to guess that there is some bug that promotes a race condition under rare circumstances, either on upgrade or otherwise. On 04/30/2012 09:54 PM, Vex Mage wrote: > To be clear. Mozilla's reindexing code causes "stupidly" high CPU usage > and effects pretty much all Ubuntu users who upgrade Thunderbird and > this period of unusable desktop experience is ok because it only happens > once? I think Thunderbird should not make the assumption that it's the > only app using the cpu. I disagree with categorizing this bug as > invalid. > -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/984801 Title: Thunderbird 11 has stupidly high idle CPU usage Status in “thunderbird” package in Ubuntu: Invalid Bug description: Running Ubuntu 10.04 LTS 32-bit and today I got the upgrade from Thunderbird 3.6.X to 11.0.1 and noticed it is using a stupid amount of CPU time when apparently idle. On my quad-core AMD machine it is taking typically 30-50% CPU when doing nothing, and this is much the same when minimised, as shown by 'top' top - 12:50:00 up 1:59, 4 users, load average: 1.27, 0.99, 1.03 Tasks: 230 total, 3 running, 226 sleeping, 0 stopped, 1 zombie Cpu(s): 12.2%us, 1.4%sy, 0.0%ni, 82.5%id, 3.9%wa, 0.1%hi, 0.0%si, 0.0%st Mem: 2706608k total, 2621568k used, 85040k free, 148192k buffers Swap: 0k total, 0k used, 0k free, 1612160k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 20049 paul 20 0 478m 157m 33m R 46 6.0 0:57.14 thunderbird-bin 19759 paul 20 0 270m 195m 18m S 4 7.4 1:07.00 opera 3918 paul 20 0 165m 24m 12m S 1 0.9 1:25.70 chromium-browse 19215 paul 20 0 2652 1340 984 S 1 0.0 0:21.85 htop 1317 root 20 0 152m 98m 13m S 1 3.7 8:20.29 Xorg 4422 paul 20 0 49096 13m 9.8m S 0 0.5 1:22.72 gnome-terminal 20165 paul 20 0 2544 1272 912 R 0 0.0 0:00.06 top 1 root 20 0 2808 1664 1168 S 0 0.1 0:00.56 init 2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd 3 root RT 0 0 0 0 S 0 0.0 0:00.11 migration/0 This is APPALLING for anyone on a laptop where power consumption (and hence battery life) is directly related to CPU use! What is Thunderbird doing with all of the CPU cycles? I tried running it in safe mode, and have already disabled any plugins but to no improvement. I also tried running it via strace and it spews out a lot of system calls even when idle, most oddly are blocks like this: clock_gettime(CLOCK_MONOTONIC, {6787, 22357603}) = 0 clock_gettime(CLOCK_MONOTONIC, {6787, 22435200}) = 0 gettimeofday({1334749406, 311330}, NULL) = 0 gettimeofday({1334749406, 311537}, NULL) = 0 gettimeofday({1334749406, 311670}, NULL) = 0 futex(0xb75eb5c8, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0xb75eb5c4, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1 open("/home/paul/.thunderbird/3c38dt95.default/session.json", O_WRONLY|O_CREAT|O_TRUNC|O_LARGEFILE, 0664) = 56 write(56, "{\"rev\":0,\"windows\":[{\"type\":\"3pa"..., 396) = 396 close(56) = 0 gettimeofday({1334749406, 314673}, NULL) = 0 clock_gettime(CLOCK_MONOTONIC, {6787, 26165961}) = 0 clock_gettime(CLOCK_MONOTONIC, {6787, 26256350}) = 0 clock_gettime(CLOCK_MONOTONIC, {6787, 26329526}) = 0 gettimeofday({1334749406, 315949}, NULL) = 0 gettimeofday({1334749406, 316354}, NULL) = 0 gettimeofday({1334749406, 316908}, NULL) = 0 gettimeofday({1334749406, 317088}, NULL) = 0 Notice it is calling gettimeofday() every 100us or so! Looks like someone should be using usleep() or similar time-wasting methods when nothing is happening :( To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/984801/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
