Archive for the ‘App Tamer’ Category
Friday, December 30th, 2016
So I’ve noticed in Sierra that some of its “helper processes” (apps that run in the background to do various tasks) will occasionally start using 100% CPU for no reason. In particular, I’ve seen the com.apple.appkit.xpc.openAndSavePanelService process stay pegged after a file dialog is done – it just sits there and consumes CPU while doing nothing. Quitting the app that was showing the file dialog will stop the CPU-hogging, but it otherwise continues indefinitely.
I’ve been wondering if this might actually be the source of the much-talked about Consumer Reports findings that the new MacBook Pros have very inconsistent battery life. Their results varied widely from test to test (on the same computer) – maybe one of the WebKit helper processes was just flipping out once in a while due to some underlying bug in Sierra’s interprocess communication or process management services.
While that’s just my own random speculation, the issue of processes running amok seems to be a recurring annoyance to some folks. To help you detect this sort of stuff, I’m adding an option in App Tamer to notify you if a process starts consuming excessive CPU time. If it does, it gives you the options shown in the screenshot.
Can’t hurt, right? Shoot me an email (AppTamer at stclairsoft dot com) if you’re interested in trying it out and doing a little testing for me.
Wednesday, August 31st, 2016
Yes, I’ve been busy over here! There are Sierra-compatible updates for both App Tamer and Jettison today, with both offering additional fixes and enhancements as well as support for macOS 10.12.
App Tamer 2.2: While I’ll be the first to admit that App Tamer is a bit of a niche product (you’ve got to be a little geeky to like the details of what it does), I’m excited by the improvements in this release. It’s more intelligent about identifying which processes are “helpers” for others, and can therefore do a much better job at throttling all those Safari Web Content processes when it limits Safari’s CPU usage, for example, while still letting the Mail Web Content helpers run at full tilt for Mail (if that’s what you want).
App Tamer’s basic process management is also more efficient now, so it all adds up to it doing its job better. If you’ve got apps that are sucking down CPU (and battery!) while they’re sitting in the background, App Tamer can help you out. More details and download links are on the App Tamer What’s New page.
Jettison 1.5.1: The Jettison update addresses issues with Sierra, and also gives you the option to unmount rather than eject drives when your Mac sleeps. “Why do I care?” you say? Well, I’m glad you asked (and you might be too)! Some SD cards and Flash drives won’t remount properly after being ejected, even when Jettison reloads their device drivers. That can result in you having to do a really inconvenient little dance of unplugging them and plugging them back in to get them to show up. Turning on this new option in your Jettison prefs avoids that.
There are also bug fixes for Jettison’s handling of network drives, removal of some logic that checked whether the display was going to sleep before ejecting disks (long story – it did solve a problem, but created even more in the end), and tweaks to better handle OS X’s propensity to report errors when there are none. Go visit the Jettison What’s New page for a list of changes and download links.
Now here’s hoping that Apple doesn’t make any major changes to Sierra before it comes out of beta that require me to update these Sierra-compatible updates 🙂
Wednesday, August 17th, 2016
Wednesday, February 10th, 2016
Thursday, October 8th, 2015
Wednesday, March 25th, 2015
App Tamer 2.0.5 just dropped, fixing a compatibility glitch with Safari that could cause App Tamer to mis-manage full-screen Flash playback (among other things). There are also a host of smaller fixes that will improve your user experience, like better error messages, fixing permissions problems automatically, etc.
This version also explicitly offers to switch to a logarithmic cpu graph on 8- and 16-core Macs to increase the amount of detail you can typically see on the graph (science and tech nerds nod here, while everyone else says “what the heck is a logarithmic cpu graph?”).
What’s logarithmic graph good for?
Basically, it changes the vertical scale of the graph so that data toward the bottom of the graph is magnified, while the top of the graph is squeezed together. Since most of the activity on the cpu graph is down below 50% on 8- and 16-core Macs (because you’re rarely actually using all 8 or 16 cores), this lets you see more details that you care about.
In the screenshot of App Tamer’s logarithmic cpu graph to the right, each horizontal gray line on the graph represents a 10% increment. As you can see, the bottom 10% increment takes up half of the vertical space, the next 10% takes up 15% of the space, and so on, with each successive 10% increment taking a smaller amount of screen real estate. This magnifies the bottom end of the graph, where most of the activity happens on Macs with lots of cpu power.
You can toggle between a regular linear graph and the logarithmic one by control-clicking (or right-clicking) on the graph. A little popup menu lets you choose which scale you want to use.
Back to your regularly scheduled program…
Sorry for the digression. You can see the full change history and download App Tamer 2.0.5 on the App Tamer Release Page.
Wednesday, October 8th, 2014
Friday, March 28th, 2014
App Tamer 2.0.2 is available now, providing fixes for a couple of bugs, as well as some minor changes to the UI that help to show what’s going on.
First the fixes:
- In certain situations, App Tamer 2.0.1 could crash when you launched it. This was due to a bug in the way it tracked subprocesses. The common example was a command in Terminal that ran a couple of other commands which in turn spawned subprocesses themselves. A few simple checks were all that was needed to fix it.
- A more common problem was that App Tamer would occasionally stop limiting the CPU usage of an application it was supposed to be managing. This turned out to be a timing issue: If App Tamer stopped throttling a process and then immediately started again, the original CPU limiter would still be winding down and App Tamer would find it and use it rather than creating a new one. A few milliseconds later, that CPU limiter would finish shutting down and disappear, leaving the managed application free to use as much CPU as it wanted. App Tamer doesn’t do that anymore 🙂
The UI enhancements:
- Mark Mackay, an App Tamer user in New Zealand, pointed out that if App Tamer wasn’t limiting the CPU use of an application at the time (because that app wasn’t doing anything) he couldn’t tell if he’d configured App Tamer to slow it down. He suggested I enhance the status indicators that App Tamer puts next to each application to somehow show that running apps – the ones with blue squares – had settings attached to them. A little triangle of color in the bottom right corner now shows you if that app will be slowed down or stopped (with yellow or red corners, respectively).
- Version 2.0.2 also dims the icon and name of any application or process that can’t be stopped, so you know not to bother clicking on them.
Grab your copy from the App Tamer Release page. The update is free if you’ve bought App Tamer 2!
Wednesday, January 22nd, 2014