UI Performance Decline – OS X Tiger to Yosemite [video] • Hacker News Board

Re: UI Performance Decline – OS X Tiger to Yosemite [video]

#81

Post by lunixbochs » Wed, Dec 24, 2014, 8:02 AM UTC

r109 wrote: post #39

lunixbochs wrote: post #27

I feel like the entire compositor has a performance regression. This includes dragging windows, and seems to have nothing to do with transparency. When running OS X virtualized inside VMWare Fusion (which does not have hardware accelerated video drivers for the guest), Mavericks was very usable. Yosemite dropped to 2fps (measured using Quartz Debug tools). I had to use Quartz Debug (available in the Graphics Debug To…

I use BeamSyncDropper v2 and have it open on startup. The only downsize is it takes a bit for the terminal window to load and execute the shell script. If you have an SSD this shouldn't be a problem, just be patient for that 2-3 seconds of painstaking peasantry. xD Download and discussion about BeamSyncDropper can be found here: http://www.tonymacx86.com/customization/92201-beamsyncdroppe... Also one thing about OS X…

Okay, BeamSyncDropper is awesome.

I put this [1] in `~/Library/LaunchAgents/self.beamsync.dropper.plist` and it starts immediately in the background on login. (Make sure to change the program path).

[1] https://bochs.info/p/8k7aj

Re: UI Performance Decline – OS X Tiger to Yosemite [video]

#82

Post by mullingitover » Wed, Dec 24, 2014, 8:03 AM UTC

rajeevk wrote: post #31

city41 wrote: post #22

Earlier quoted context omitted.

I'm at my wits end with Yosemite. I'm very seriously considering switching to Linux or Windows. Of the numerous problems this OS has, my biggest problem is waking my rMBP from sleep. About 20% of the time, it just doesn't wake up and requires a hard shutdown. I never had that problem with Mountain Lion or Mavericks.

Same with me. Before upgrading I always used to close the lid to make my macbook to sleep. The wake-up experience was good. But after upgrading, after waking up the system becomes too slow to use. I have to restart. So stopped putting my mac book pro to sleep. Now I always have to shut down when not using. Apart from sleep-wakeup problem, in general this has become much slower compared to mavericks Probably this coul…

That's no problem, just upgrade your ram!

Oh wait...

Re: UI Performance Decline – OS X Tiger to Yosemite [video]

#83

Post by mayhaffs » Wed, Dec 24, 2014, 8:04 AM UTC

While loitering in the local Apple store, I got on a new 5k iMac and started launching a bunch of applications with multiple windows, alt-tabbing and clicking around really fast, etc. Normal dev workflow stuff..

Discovering the glitchy flash in the system preferences pane was really unsettling. Almost a uncanny valley type situation.

I'm still on Mavericks. I've been waiting for bug fixes from Apple and application support for non-Apple apps before upgrading to Yosemite. But after seeing the glitchy-ness on the 5k and reading these comments..

Both recent upgrades are pretty disappointing. When I first got an iPhone 4, I was astonished by how there were practically zero bugs, especially compared to my previous no-name OS, bug-infested phones.

Are there actually more bugs in Yosemite/iOS8? And if so, can we identify potential factors?

Technical challenges shifting to Swift? Regular product life cycle growing pains? Decreased focus on OSs from Apple Increased product-lines/technologies? Pivot from price-skimming to market-capture business strategy?

Re: UI Performance Decline – OS X Tiger to Yosemite [video]

#84

Post by rmetzler » Wed, Dec 24, 2014, 8:05 AM UTC

Not really sure what causes this, but I learned that Apple changed the layouting algorithm to Cassowary a few years ago [1]. Because languages have different word length (eg. German words tend to be much longer than English words) and UIs should be readable in every language. Apple now uses constraints to layout the UI and the algorithm tries to find a good solution through iteration and has to reiterate for every size change. Visual effect might also trigger this.

[1] http://en.wikipedia.org/wiki/Cassowary_%28software%29

Re: UI Performance Decline – OS X Tiger to Yosemite [video]

#85

Post by unicornporn » Wed, Dec 24, 2014, 8:06 AM UTC

hyperbovine wrote: post #15

hit8run wrote: post #2

That's also what I experienced. Yosemite UI Performance is super slow compared to Mavericks. Maybe by rewriting the UI Code they also got rid of speed optimizations from the Bertrand Serlet era :/

Turning off transparency in the Accessibility preferences fixed it for me.

And now you get the funny black corners in the hud when changing the volume... Polish is needed.

Re: UI Performance Decline – OS X Tiger to Yosemite [video]

#86

Post by coldtea » Wed, Dec 24, 2014, 8:13 AM UTC

EGreg wrote: post #55

city41 wrote: post #22

Earlier quoted context omitted.

I'm at my wits end with Yosemite. I'm very seriously considering switching to Linux or Windows. Of the numerous problems this OS has, my biggest problem is waking my rMBP from sleep. About 20% of the time, it just doesn't wake up and requires a hard shutdown. I never had that problem with Mountain Lion or Mavericks.

Remember iOS 7? Same thing. Who was the joker who kept insisting that iOS 7 was really better and very few complained? I warned about this, post-Jobs Apple design and attention to detail.

>Who was the joker who kept insisting that iOS 7 was really better and very few complained?

The majority of the population?

Re: UI Performance Decline – OS X Tiger to Yosemite [video]

#87

Post by unfunco » Wed, Dec 24, 2014, 8:15 AM UTC

x0054 wrote: post #70

Also, this is part of the final build? https://d262ilb51hltx0.cloudfront.net/max/800/1*EdAxsHqdZmZ7... Really, this bug was reported in the original beta, 6 months ago!

I think that only happens when UI transparency is disabled. I don't have the same issue[0]. I find Yosemite to be fine with a few exceptions, Safari is not as fast as I'd like it to be, and I've had issues when attempting to answer the phone on my laptop. I think Apple needs a Snow Yosemite, where they focus on fixes and performance with minimal new features.

[0]: http://imgur.com/KIIbsfr

Re: UI Performance Decline – OS X Tiger to Yosemite [video]

#88

Post by coldtea » Wed, Dec 24, 2014, 8:17 AM UTC

lobster_johnson wrote: post #58

ntSean wrote: post #33

Earlier quoted context omitted.

All of the features you've just canned, I use regularly, and don't see the huge issue that you're talking about. I receive calls on my laptop daily and I've very rarely had it fail. I find being able to reply to texts and calls insanely useful. Regardless of my anecdote all new technology is prone to bugs. To say "turn off the 10 gimmick features so you can get back to some level of sanity" is ridiculous. The feature…

If Yosemite, iOS 8 and other recent changes have shown anything, it is that that problems are not consistent across the user base -- some users are plagued by bugs, while others are somehow, inexplicably completely problem-free. I myself have been hit hard by Yosemite bugs (graphics glitches, slowness, wifi not connecting at all, very slow wifi, Mac not coming out of sleep, AirPlay issues, Airdrop issues, Bluetooth s…

>If Yosemite, iOS 8 and other recent changes have shown anything, it is that that problems are not consistent across the user base -- some users are plagued by bugs, while others are somehow, inexplicably completely problem-free.

Not really inexplicably: different graphics and airport cards (in different Mac models), different wi-fi routers, some have installed BS haxies while others have not, some have updated their OS on top of the previous installation for 3-4 OSes, where others start from a clean slate, etc. Regarding Hangout, it's also different iOS device version, proximity to the phone, etc.

Re: UI Performance Decline – OS X Tiger to Yosemite [video]

#89

Post by coldtea » Wed, Dec 24, 2014, 8:18 AM UTC

grandalf wrote: post #36

Not sure what everyone is talking about, I loaded Yosemite on my 3 macbooks (2010 11" air, 2011 13" air, and 2014 13" pro) and it works perfectly on all with no glitching whatsoever.

Could be a retina thing. I see it on my MBPr 15 2013.

Re: UI Performance Decline – OS X Tiger to Yosemite [video]

#90

Post by kayoone » Wed, Dec 24, 2014, 8:18 AM UTC

mrmondo wrote: post #13

was heavily involved in the beta testing of 10.10, In my experience Yosemite is by far not only the most buggy, but also slowest release of OSX. I am saddened to report that only one of the many performance regressions I reported was actually fixed (In that case within Mail.app). A huge portion of the performance problems seem to be stemming from the graphics subsystem. If you use Yosemite on dual Retina or even WQHD…

Its especially bad on the 13" rMBP which has a relatively weak GPU. When using scaled resolutions the UI lag is very noticeable, i also get some redrawing issues of icons. You can improve the situation by disabling transparency effects, but that produces some graphical glitches.

In the end i disabled retina resolution and am running native 1680x1050 now. Definitely not as crisp but i got used to it and system load is considerably less (especially when playing back video and such) now and battery life improved as well.

Current GPUs in the Macbooks are just not ready to handle the massive resolutions used for scaling. Just try to run a 60fps youtube video in a scaled resolution and you will see your system load go up to the point the video might even stutter.