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activity monitor

tim meidroth All Messages By This Member #621 in activity monitor what percentage of cpu is a red flag? sometimes i see 3% and wonder if that's a problem...i'm guessing it's not.
jimrobertson All Messages By This Member #622 开云体育 On Nov 1, 2019, at 9:19 AM, timmeidroth <timmeidroth@...> wrote: in activity monitor what percentage of cpu is a red flag? If you’re doing something processor-intensive, you may see transients up to >50%, but basic things like composing/reading email, working on the web, etc., will rarely use more than a few per centage points of a typical Mac processor, which spends most of its time waiting for you to tell it to do something. Jim Robertson
rlhamil All Messages By This Member #626 开云体育 Generally true, but there are exceptions. For example: Something seemingly I/O rather than processor intensive can get processor intensive if it quickly creates a lot of files, due to Spotlight indexing of the new files. Even more so if an on-access virus scanner is running, since it will also examine each file. If you have VMs storing their virtual disk images in big files, make exceptions for the virus scanner so that it doesn't look at those files, because it won't understand them anyway, and they'll change every time the VM changes any file on its "disk", generating a lot of pointless scanning activity. If running big software builds, and you can manage to avoid risky activity like web browsing while they run, temporarily turn off on-access virus scanning, so that it won't be constantly triggered during the builds; also, some open source apps tend to generate false alarms while being built, causing the antivirus software to quarantine their files and break the build process. Some web pages have so much active content (ads, animation, etc) that they're pigs ?too. toggle quoted message Show quoted text On Nov 1, 2019, at 11:36, jimrobertson via Groups.Io <jimrobertson@...> wrote: On Nov 1, 2019, at 9:19 AM, timmeidroth <timmeidroth@...> wrote: in activity monitor what percentage of cpu is a red flag? If you’re doing something processor-intensive, you may see transients up to >50%, but basic things like composing/reading email, working on the web, etc., will rarely use more than a few per centage points of a typical Mac processor, which spends most of its time waiting for you to tell it to do something. Jim Robertson
Dane Robison All Messages By This Member #627 开云体育 On Nov 1, 2019, at 11:36 AM, jimrobertson via Groups.Io <jimrobertson@...> wrote: On Nov 1, 2019, at 9:19 AM, timmeidroth <timmeidroth@...> wrote: in activity monitor what percentage of cpu is a red flag? If you’re doing something processor-intensive, you may see transients up to >50%, but basic things like composing/reading email, working on the web, etc., will rarely use more than a few per centage points of a typical Mac processor, which spends most of its time waiting for you to tell it to do something. Jim Robertson Ha! I guess it all depends on what you're doing. When Adobe Lightroom is churning away importing or exporting a large batch of photos on my MacBook Pro, it routinely gets into the 1000-1500% range, whatever that means! Dane
Jim Saklad All Messages By This Member #634 On Nov 1, 2019, Dane Robison wrote: When Adobe Lightroom is churning away importing or exporting a large batch of?photos on my MacBook Pro, it routinely gets into the 1000-1500% range, whatever?that means! I have a quad-core i7 CPU, with hyperthreading. So when needed, it can devote 8?computational threads to a task. Like you, I noted when batch-importing and pre-processing a days photography?(over 100 shots), CPU activity maxed at over 600% (i.e., an average of 75% on both?threads of each of 4 cores). Dane, do you have the 15” MBPro (2019), Model A1990, with the Core i9 processor? With 8?cores, hyperthreaded? --? Jim Saklad jimdoc@...
Dane Robison All Messages By This Member #640 On Nov 1, 2019, at 12:34 PM, Jim Saklad via Groups.Io <jimdoc@...> wrote: On Nov 1, 2019, Dane Robison wrote: When Adobe Lightroom is churning away importing or exporting a large batch of photos on my MacBook Pro, it routinely gets into the 1000-1500% range, whatever that means! I have a quad-core i7 CPU, with hyperthreading. So when needed, it can devote 8 computational threads to a task. Like you, I noted when batch-importing and pre-processing a days photography (over 100 shots), CPU activity maxed at over 600% (i.e., an average of 75% on both threads of each of 4 cores). Dane, do you have the 15” MBPro (2019), Model A1990, with the Core i9 processor? With 8 cores, hyperthreaded? Mine's an older late-2013 15" retina with the 4-core i7. Dane
Brent All Messages By This Member #668 Tim, each Mac has a different answer. I have kept Activity Monitor's CPU History open in the bottom left corner of all my Macs for about the last 20 years. Then things start to slow or freeze, my ey glances down there, and I see a lot of red. To figure out what is causing that, I open the main window.? I also keep Hardware Monitor, and app like iStat, but older, open since heat is often an issue with laptops. Brent MacBook Pro,?15",?early 2008, OS X 10.7.5 iPhone 4S, iOS 9.3.6 iPad 3rd gen, iOS 9.3.5 toggle quoted message Show quoted text On Nov 1, 2019, at 8:19 AM, timmeidroth wrote: in activity monitor what percentage of cpu is a red flag? sometimes i see 3% and wonder if that's a problem...i'm guessing it's not.

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