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I recently updated from Mavericks to Yosemite on my 2012 rMBP. Even with no transparency on my battery life was down from 6+ hours to less than 3.5 hours! And e

by x0054 12y ago

I recently updated from Mavericks to Yosemite on my 2012 rMBP. Even with no transparency on my battery life was down from 6+ hours to less than 3.5 hours! And everything is so annoyingly slow. After 3 days with Yosemite I had to use my wife's 2009 Air for something, it's running Mavericks, and wow, the speed! That day I restored from a backup and now I am back to running 10.9. My battery is back to 6+ hours, and my laptop is flying. I also updated my iPad 3 from iOS 6 to iOS 8. Now it's unusable! So, so, so slow. And that I can't even downgrade. If you are going to screw things up, Apple, can you at least give me an option to downgrade. I think the main problem is the monolithic aspect of the OSX and iOS. Why is the Mail or Face Time app part of the OS?

coldtea 12y ago
>I recently updated from Mavericks to Yosemite on my 2012 rMBP. Even with no transparency on my battery life was down from 6+ hours to less than 3.5 hours! And everything is so annoyingly slow. Actually your memory usage should go down with Yosemite -- they have new technologies just for that. Same for battery file, it should go up. Since this is HN, do people do basic investigation, or assume that anything that doesn't seem to work is a lost cause and just switch OSs, re-install, or complain? Your experience for example seems more like some rogue app with extensive CPU/memory usage driving the battery down. Have you checked Activity Monitor to try to spot if that was the case?
- x0054 12y ago
  >Since this is HN, do people do basic investigation, or assume that anything that doesn't seem to work is a lost cause and just switch OSs, re-install, or complain? >Your experience for example seems more like some rogue app with extensive CPU/memory usage driving the battery down. Have you checked Activity Monitor to try to spot if that was the case? Yes, I did perform basic investigation. I switched from Chrome to Safari, because Chrome was eating battery like crazy. I shut down anything that I wasn't using. Browsing the internet on Safari I was getting 3.5 hours on a charge. I even timed it! And I am not the only one, read the Apple forums complaining about this. I even reset the PRAM, as Apple recommends. It didn't help. Now I am running a lot more apps, using Chrome, compiling stuff in the background, and still getting my usual 5.5-6.5 hours of battery life (depending on the load). So, yes, I did spent over 20 hours of my life trying to make Yosemite work, and then gave up and switched back to Mavericks. I had a CC backup, so it only took 20 minutes. >Actually your memory usage should go down with Yosemite -- they have new technologies just for that. Same for battery file, it should go up. Also, I didn't not mention anything about memory usage, but you are right, the memory footprint was lower. About 1.6gb on average, vs 2.6gb with Mavericks. But I don't care about that, I have 16gb, so I have RAM to spare. On the other hand, I can use all the battery life I can get. Apple does some amazing things, and some really bad things. It's important to give them due credit for the mazing things, and call them out on the crap that they put out as well. Yosemite is very slick looking and a very pretty operating system. But it is very buggy, and what Apple put out as a GM release is beta quality at best.
CodeWriter23 12y ago
You need at least 8GB to avoid pageouts while running Yosemite. Well, you can get away with running Safari all by itself in 4GB without getting too many pageouts, but that's about it. Verified by observing vm_stat values on my 4GB 'Air and my wife's 8GB 'Air.

by x0054 12y ago

coldtea 12y ago

>I recently updated from Mavericks to Yosemite on my 2012 rMBP. Even with no transparency on my battery life was down from 6+ hours to less than 3.5 hours! And everything is so annoyingly slow. Actually your memory usage should go down with Yosemite -- they have new technologies just for that. Same for battery file, it should go up. Since this is HN, do people do basic investigation, or assume that anything that doesn't seem to work is a lost cause and just switch OSs, re-install, or complain? Your experience for example seems more like some rogue app with extensive CPU/memory usage driving the battery down. Have you checked Activity Monitor to try to spot if that was the case?

x0054 12y ago
>Since this is HN, do people do basic investigation, or assume that anything that doesn't seem to work is a lost cause and just switch OSs, re-install, or complain? >Your experience for example seems more like some rogue app with extensive CPU/memory usage driving the battery down. Have you checked Activity Monitor to try to spot if that was the case? Yes, I did perform basic investigation. I switched from Chrome to Safari, because Chrome was eating battery like crazy. I shut down anything that I wasn't using. Browsing the internet on Safari I was getting 3.5 hours on a charge. I even timed it! And I am not the only one, read the Apple forums complaining about this. I even reset the PRAM, as Apple recommends. It didn't help. Now I am running a lot more apps, using Chrome, compiling stuff in the background, and still getting my usual 5.5-6.5 hours of battery life (depending on the load). So, yes, I did spent over 20 hours of my life trying to make Yosemite work, and then gave up and switched back to Mavericks. I had a CC backup, so it only took 20 minutes. >Actually your memory usage should go down with Yosemite -- they have new technologies just for that. Same for battery file, it should go up. Also, I didn't not mention anything about memory usage, but you are right, the memory footprint was lower. About 1.6gb on average, vs 2.6gb with Mavericks. But I don't care about that, I have 16gb, so I have RAM to spare. On the other hand, I can use all the battery life I can get. Apple does some amazing things, and some really bad things. It's important to give them due credit for the mazing things, and call them out on the crap that they put out as well. Yosemite is very slick looking and a very pretty operating system. But it is very buggy, and what Apple put out as a GM release is beta quality at best.

CodeWriter23 12y ago

You need at least 8GB to avoid pageouts while running Yosemite. Well, you can get away with running Safari all by itself in 4GB without getting too many pageouts, but that's about it. Verified by observing vm_stat values on my 4GB 'Air and my wife's 8GB 'Air.