Mail.app Killing CPU Usage

kainjow

Moderator emeritus
Original poster
Jun 15, 2000
7,745
3
I was checking to see how much CPU my computer was using when idle, and I happened to notice that Mail.app is taking 95-100% CPU usage, and it's doing absolutely nothing! (well obviously it is... but nothing apparent).

Anybody else seeing this?
 

walkingmac

macrumors 6502
Mar 30, 2003
261
0
Greater Cincinnati
I WAS JUST GOING TO START A THREAD ON THIS
ok.. that means there is a serious problem going on. I would say it is safe to presume that it is due to the new security update. Anyone else seeing this?
 

kainjow

Moderator emeritus
Original poster
Jun 15, 2000
7,745
3
Hm well I relaunched the app, I received 2 emails, and started composing an email, and it's normal. I'll see what it's like once I send the email and relaunch the app again...

Oh btw. I noticed you're from Cincinnati - I'm in Columbus :cool:
 

Mr_Ed

macrumors 6502
Mar 10, 2004
443
8
North and east of Mickeyland
:confused: That's bizarre . . . My Mail.app uses 0.0% when idle (as one would expect). I currently have six active mail rules, seven mailboxes, and about 3800 messages between all my mailboxes, junk pile, and buckets used in my mail rules. I have all updates installed (security, etc.) with the exception of the latest AirPort card update (don't have AirPort).

Just curious: How many messages in your mailboxes? Could it be doing some sort of background indexing operation?
 

stoid

macrumors 601
My Mail.app just went nuts too. I was away from my laptop, and came back and the blower was running. Turns out that Mail was hogging all the idle cycles throwing it into high gear.

Three people's mail goes screwy all at the same time. What's going on?!?


edit: I restarted Mail, but once it loads it immediately goes back to hogging all the CPU time. This is too coincidental to be a system problem. Some sleeper Mac virus? Is it the end of the world?!? :eek:

I just watched some really scary movies for Halloween, and I'm freekin' OUT!!
 

kainjow

Moderator emeritus
Original poster
Jun 15, 2000
7,745
3
Yep, after sending my email, and relaunching the app, it's all good.

Maybe Mail was "phoning home" ??? :p
 

LeeTom

macrumors 68000
May 31, 2004
1,528
72
My mail.app is at a steady 0.00%. I'll keep an eye on it though.

Lee Tom
 

Veldek

macrumors 68000
Mar 29, 2003
1,790
1
Germany
Whoa, mine did the same, but a restart didn't fix it. I left it closed overnight and today it's allright again. What was this?
 

Koodauw

macrumors 68040
Nov 17, 2003
3,936
165
Madison
Wow, this just happened to me tonight!

Anyone want to try and find the link we all have in common?

Did everyone update to the new security update or iTunes or Qucktime. I have.
 

Cybernanga

macrumors regular
Oct 27, 2004
201
0
Essex, United Kingdom
Got 2 reports of this over at MacRumors IRC tonite

Trashing prefs (mail's plist) seemed 2 work for them

Hope it's not the 1st Mac Virus. The Halloween date makes me suspicious.
 

aplasticspork

macrumors regular
May 27, 2004
199
0
Seattle Wa.
weeeeeeird!!! that just started for me!!! i quit mail and opened it again and 5 messages appeared from over the course of the day that hadn't showed up before :eek: and its still having problems...doesn't effect performance though :cool:
--andrzej

Edit: Mail now has 7 threads, as opposed to the normal 4. also, there's a process that i've never seen before called "(null)" that uses 0% CPU, has 14 threads, and has 1.1 GB of virtual memory :eek: what's going on!?!?!?!
 

aplasticspork

macrumors regular
May 27, 2004
199
0
Seattle Wa.
walkingmac said:
without much to support this, I would say it has something to do with the updates from a days ago. seems to be what is the same between us.
problem is, i've been doing all the updates and everything, but this just started about five minutes ago, i saw this thread over an hour ago and checked the activity monitor and mail.app was using 0.00% CPU, now everything is going crazy. anyone else have the mysterious (null) process?
--andrzej
 

walkingmac

macrumors 6502
Mar 30, 2003
261
0
Greater Cincinnati
agreed, the time delay seems odd, just wonder if it was a breakdown of the prefs. and i don't know what else could affect such a broad range of users. Since the update, I have been gone and not used my machine much at all since, came back a few hrs ago then noticed it doing that after a bit (have menumeter running always). So i don't know how it could be a 'virus' and affect so many people so quickly unless it was in some 'mac' website, but that seems hard to see, and affect mail no less. While it could be something else, that just seems to be smoking gun for me at this time. I hope someone can figure a fix without messing mail up (it sucks trying to reconfigure everything!)
 

aplasticspork

macrumors regular
May 27, 2004
199
0
Seattle Wa.
ok, now the (null) process is using 5-6% of the CPU, before it was using none. i'm sufficiently unnerved. anyone else see this process? :eek:
--andrzej

Edit: heres a screenshot...
 

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walkingmac

macrumors 6502
Mar 30, 2003
261
0
Greater Cincinnati
OK... the eye of the storm

in equally weird fashion, i launched mail and now all is fine. I see 6 thread items. idk what i had b4. While I am glad things are fine, i still don't know what the problem is and that is a bit unsettling. I hope other ppl's mail is ok too, but I hope this is taken seriously and someone can figure this out.
 

walkingmac

macrumors 6502
Mar 30, 2003
261
0
Greater Cincinnati
aplasticspork said:
ok, now the (null) process is using 5-6% of the CPU, before it was using none. i'm sufficiently unnerved. anyone else see this process? :eek:
--andrzej
sry, but where do u see these process? in activity monitor somewhere? looking and not seeing them.