Hi, Thanks to all, for their suggestions on this post of mine. Half of the responses I understood, half were above my head. Fortunately, Thunderbird finished all it's re-indexing. So CPU demand is back down to normal. But I'll save your ideas, and implement some of them before January next year (when this is likely to reoccur) or before I run Handbrake or Transmageddon again. I'll also be upgrading to Ubuntu 12.4 some time between now and April, when the LTS runs out. Maybe to Mint (as I like Gnome) if Mint also has LTS for 3-5 years. (Then again, maybe I'm misunderstanding the whole Distro phenomenon.) While waiting for your responses to this post, I took the lid off my tower case and pointed a small house fan at the motherboard. CPU temp dropped from 60C down to 35C in a couple of minutes. Hmm. All vents are clear, heat-sinks are clean, and fans are spinning. Maybe the case just wasn't designed for heavy workloads in Melbourne summers. A couple years ago, I spent many frustrating hours trying to find out the max safe temp for my CPUs. Somewhere, somehow, I =finally= stumbled across the following and saved it to disk. Hence my concern when it hits 60C.
Intel Pentium D 930 Core Presler No.Core 2 Frequency 3000 MHz L1 cache 12 KB + 16 KB L2 cache 2048 KB L3 cache 0 KB Socket 775-FCLGA6 Technology 65 nm FSB 200 MHz HT/QPI/DMI 800 MHz Voltage 1,225-1,325V TDP 95 W OEM HH80553PG0804M BOX BX80553930 BX80553930 BX80553930 Steep B1 C1 Max. temp. 63°C Date 2006-01-05 QEZJ QJZB QMVD SL8WR SL94R SL95X
BTW Also worked up a quick cheap ugly but effective kludge (but I repeat myself) for cooling my laptop: Get a clean empty pizza box of appropriate size. Map out critical air vents on bottom of laptop. Cut out corresponding holes on lid of pizza box. Cut out a similar total area of holes on back "hinge" edge of pizza box for intake/exhaust. Cheers, Carl On 10/01/13 10:42, Carl Turney wrote:
Hi All,
Running Thunderbird 15.0.1 on Ubuntu 10.4 (Please don't suggest changing my email client or Linux to your current favourites.)
Thunderbird is doing a major re-indexing of messages, which is really pushing my CPU to its limits. (i.e. getting over 60C core temperature, email process using 100-160% of CPU usage - dual core CPU)
Full details of my hardware, and the CPU usage are documented here: http://forums.mozillazine.org/viewtopic.php?f=31&t=2399189
That was this time last year. Doing the same thing now with my updated version of TB. (Only happens for a couple days, once a year, when I shift all my Sent messages of the previous calendar year to an "archive" folder.)
Could any of you point me to instructions to get Ubuntu to limit or choke the demand that the Thunderbird process calls upon the CPU?
Thanks =very= much.
Carl Turney Bayswater _______________________________________________ luv-main mailing list luv-main@luv.asn.au http://lists.luv.asn.au/listinfo/luv-main