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Is Mac OS X Slow?
Junks Jerzey asks: "Every time there's a mention of Mac OS X on Slashdot, there's a flurry of responses about how unbearably slow Mac OS X is. To anyone who has done software development under both Mac OS X and Windows or Linux, is there any truth to this or is it simply a knee-jerk reaction from non-Mac users who see low numbers like 800MHz. I'm talking about average priced Macs here, like the LCD iMac line, not the dual 1.25GHz machines that sell for $4500+." Having the fortune of using a Titanium Powerbook for over a month, I don't find Mac OS X that slow at all, however, there are some things that do take a little longer than I am used to, but I think these things are application-specific. For those Mac OS X users out there, have you noticed operations that seemed slower using Mac OS X compared to similar operations on other operating systems?
"have you noticed operations that seemed slower using Mac OS X compared to similar operations on other operating systems?"
Simple answer, yes. Complex answer: Those systems aren't running Windows. Mac OS X is always RESPONSIVE. If a splash screen comes up, you can still pull another application in front of it. If an app is running a huge calculation, you can still web browse. iTunes doesn't skip. You can play DVD on your background (you have to set your background color to a specific value, start up the DVD, then hide the DVD player). You put a really pretty fish tank OpenGL screensaver as your background. Running many mpeg4s at the same time doesn't choke the system. It keeps going, in fact if you just add ram, like with any Unix system, you can throw any number of big jobs at it, and it will keep going.
That being said, you have to wait for the genie effect to take place. Because it's a friggen animation. Same with icon removals from the desktop. If you aren't running QE (which from what I know is most of the OS X installs today), you get a big CPU hit on moving windows, resizing, and putting in dock. But it still keeps going. I'm really quite amazed at how well it works, day in, day out.
Am I unpleased, no. Do I even consider other OS's. Not anymore. Can it be made faster, sure.
Burn Hollywood Burn
It still isn't as fast as Linux or XP (IMO), but has enough polish that I still prefer using it. There are some things that count more than speed. I think OSX does well on those.
I must ask though why these rather generic OSX discussions keep coming up on Slashdot. They seem more appropriate for some forum rather than "news for geeks." Don't get me wrong, I love OSX. I can't wait for 10.3 which will probably be the final reason to pick it over other OSes. But does it really justify all these topics?
Mozilla for OS X is the slowest OS X app I have. I still use it cause I'm totally addicted to tabbed browsing, but I sure wish it were faster.
(I know this is not an OS problem, it's a bloaty Mozilla problem)
I think the question is really one of perceived speed. I noticed that on the AMD box, and Win2000, the common behaviour for screen draws is to wait until the operation is finished, then draw all-at-once. For example, IE, when loading a page, will remain exactly as it is (the current page you're on), until such time that it loads Slashdot, then draws it in one fast swoop.
Now, OS X does this as well, but it tends to give more feedback. The browser window will turn white, then the banner appears, then graphics and text. I've timed both boxes - they render within a half-second of each other (again, subjectively). The OS X box could easily give the impression of slowness. But it isn't really.
There are some things in OS X that need improvement - notably window-sizing - but then again, the Win2000 box still does outline-drawing for resizing so it's not fair.
In the end I think Quartz Extreme is Apple's answer to this. Quartz does a hell of a lot more work than the current Windows drawing scheme, and it looks a hell of a lot better. When OS X first appeared, many lamented the excessive eye-candy. Now we have a scheme where your normally-dormant hotshot GPU is helping out with drawing the OS. It makes a gigantic difference, and takes a major load off the CPU. But it is version 1. It will get better.
I expect Microsoft to go through similar growing pains when they go for the photorealistic desktop in Longhorn.
If Jesus wants me it knows where to find me.
I recently installed OSX on a really slow machine : an original bondi blue 233MHz iMac with ONLY 96MB ram. Theoretically not even sufficient to even run OSX. Previously, the machine ran yellowdoglinux and was not usable at all : launching Konqueror took forever. I never succeeded in getting openoffice fully launching the wordprocessor.
:-)
OSX On the other hand runs perfectly ! No hickups at all. Slow, admittely, but that's only due to insufficient ram. I auto-launch at startup :
- apache/mysql/php/openssl suite.
- Projecttimer
- DynDNS client
- Chimera
- process monitor
- terminal with at least 5 sessions
- fuzzyclock
- mail
booting the machine up to ready-to-use point takes nearly 10 minutes. A drag. But once it is there, I can use all these apps perfectly well. Switch times are well under 1 sec. Occasionaly I launch MS Office and keep it swapped away. When activating it, it's there in less than 10 secs. Considering it needs 100MB on its own, that's nearly a miracle !
Honestly : OSX is amazing in its speed. The gui is a tad slow sometimes with the fancyschmancy transparency in menus and all that (no QuartzEx here) but once you got you windows positioned and you're not dragging stuff around, it runs smototh enough for every average user.
My tiBook667 on the other hand screams like a scramjet. Beats every other OS in speed for me. I work twice as fast on it compared to the WinXP P4@2.7Ghz next to it with a GeF4ti4600.
In fact : I only use that PC for warcraft and DooM3 alpha
which brings us to the one thing that OSX sucks at : openGL drivers of the radeon series are poopy at least. Most PCs play games better than macs, but hey, you've gotta give'm something to do, right...
When will I end this grieving ? When will my future begin ?
Since I was buying a cluster my criteria was not single processor speed but speed per dollar what i found was mildy surprising. For programs that could take advatage of the altivec chip inside the G4, the mac was about a factor of 2 cheaper per run time than the P4 and athalons. On the otherhand with the Altivec turned off the mac was about a factor of 2 more expensive per run time. I note that this was not done on code optimised for the altivec but was just generic fortran passed through an automatic vector pre-processor program for compile time optimization.
Of all the processors I tested, P3, p4, athalon, the P4 had the wildest variations in benchmarking. that is all the other proceesors seemed to have constant scaling factors in speed as the applications varied. but the p4 variev by over a factor of 3 from the others both faster and slower. I assume this has something to do with the very long pipeline, and the hyper threading, and the size of the caches. But even taking these into account I found it highly unpredictable which applications would run faster or slower (that is ones that might logically have more cache misses did not neccessary degrade)
. In the end I decided the P3 has the most bang for the buck , though falling cpu prices might shift that conclusion to the athalon. The problem I encountered with the athalon was a higher down time for the cluster units due to thermal faliure., so thats a hidden cost. The apples NEVER failed in any thermal tests so thats a hidden plus.
Now this analysis does not factor in other things like Graphics speed other factors more important to users than sceintific apps. However when I compare my molecular visualization grpahics before and after the release of 10.2 I have to say the mac is insanely fast for graphics now wheere before it was intolerably slow.
Some drink at the fountain of knowledge. Others just gargle.
Granted it only has 512mb of ram,, but this thing (Running 10.2, G4 400, blah blah) is afflicted with the dreaded "Spinning Beach Ball of Death".
Lets check google..
Ahh, here is one:
Sour Apples
Everyone is talking about it. Check google groups for discussions among DV and print people.
I spend more time here at work waiting for typing to catch up to those words being rendered on my screen, patches of my web browser window being blank, only to show up again when my cursor goes over the area. When I right click a file to choose "open with" I wait a a good 15-25 seconds for the highlighted area to get past the "Open" dialogue. It just sticks there. If I try and do something smart like hit a key, I go into "Spinning Beach Ball" mode. Not a very fun place to be.
So all in all, while I like some aspects of OS X, I spend the day at work *craving* getting home to use my redhat machine.
I know I am gonna hear: get more ram. which is true, but still, 512mb is fine on all my intel/amd based machines. I know the Apple demographic is all white, rich and owns 2.5 SUV's (that match their two wonderful white children!!), but dog slow with 512mb is just simply insane.
Roughly zero. An Objective C message dispatch is around 3x slower than a straight C function call, which is not noticeable in the vast majority of code. And in the rare cases where it is, there are simple optimizations that can eliminate it (see methodForSelector and related methods of NSObject).
How to solve most of our problems: 1.Lots of nuclear plants. 2.Cure aging.
There are many intangible factors that could contribute to this discussion. I use OSX everyday and I love it, of course, I'm not compressing video or playing Quake 3. If you want to discuss productivity as opposed to raw computing horsepower, OSX wins everytime. Here's why:
.mac, its possible to synchonize user preferences among any number of macs... this means that no matter where I go, or what mac I am on, my bookmarks stay the same, as do all my preferences for all my apps (did I mention it remembers all my passwords for all the sites I visit also). Its now possible to have a meteor (leonidas style) hit my HD and have an identical install in less than 1 hour (from cd), no fussing about with configuring everything again.
1) No viruses.
2) I can clone my entire HD with a freeware utility (in other words, backing up is easy as pie)
3) With
4) I can install or remove RAM in less than 5 seconds on any powermac.
5) OSX.2 boots very very quick on dual processor machines... its about 15-20 seconds.
6) Apple gives you, out of box, almost all the software you need to get productive, which in turn means very few installs from cd.
7) 802.11 networking is built into the OS and every new mac... no drivers necessary.
8) Almost every printer is supported in X.2, same with cd burners, again, no drivers or installs necessary.
9) Its cool watching my linux friends not use the GUI.
Sure I am biased, being a mac head, but what would compel me to use windows or linux... I hate installing stuff,I hate viruses, I hate it when my mom asks me why she can't open attachments (for fear of virus).
About the only thing wrong with macs right now is the mouse, which imho would benefit from a few more buttons and a scroll wheel.
"Smokey, this isn't Nam, there are rules." -Walter
I get tired of people stacking the deck against Macs by claiming Macs cost too much, then inventing some insane price out of thin air, like $4500. You'd have to build a pretty high end config, like a dualie 1.25Ghz with an Ultra160 RAID. Sure, you can build a wintel dualie hotbox and get up in the same price range. But I'm blazing along on a midrange dual 1Ghz machine, and oh man is it fast, and only $2500. So what is the point of attacking a Mac on price and claiming you can't get a machine except by paying $4500?!? Even an XServe doesn't cost that much.
Anyway, I've had amazingly good performance in MacOS X, but there were a few rough edges at first. Finder was kinda slow on my old G3/400 and G3/500 machines, like sorting by kind in list view. They're getting some of the metadata stuff sorted out, the new Jag finder is all fixed up and speedy. The only laggy app seems to be the Terminal, which could use a replacement. But the core Unix apps have excellent speed. I put my old G3 into use with Apache & Quicktime Streaming Server, I'm amazed at how well it performs.
Anyway, someone commented that MacOS X is hard on the apps but cushy on the user, or something like that. Right on. That was one of the Mac's big innovations, the GUI focused on the user. When I am running something like Final Cut Pro, I want every GUI screen gadget running full max. I want every single iota of computing power focused on ME and helping me get through the complex task. This is both the Mac's greatest feature and biggest CPU bottleneck. It's like the olden days of OS 9 before preemptive multitasking, when you held down the mouse, the whole CPU would hang until you let go of the menu. Whenever you were issuing commands, the CPU gave up control to the user. It was a CPU bottleneck, and we LIKED it, it gave the MacOS the immediacy of operation, a feeling of being in control that other OSes lacked. And I think they've translated that well into MacOS X. The system GUI still remains responsive, even when you're running CPU-intensive apps. Apps like Cleaner mpeg2 compression are as CPU-intense as it gets, it can compress 1 minute of DV video in 50 seconds on my midrange CPU. Cleaner is dual processor and Altivec aware, it maxes out both my CPUs, it's as hard a CPU workout as I have found. And it still leaves the system responsive, not locked up and CPU-bound.
The only problem I have with the operating system UI is the lack of window shading.
;)
You need.... WindowShade X
http://www.unsanity.com/haxies/wsx/
That's right... now you can get WindowShade functionality in OSX... only better.
please note, I don't work for unsanity... I just like their stuff
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Live Long & Prosper \\//_
CYA STUX =`B^) 'da Captain,
Jedi & Last *-fytr
Take IE, for example. It seems to wait to display the page until it has the whole thing ready to render. On a big slashdot story, that can take a while. Compare to, say, most browsers on Linux, which seem to display while the page is still downloading. Browsing seems way faster on my home system on a 144 Kbit/second connection with Linux than it does at work on OS X on a T3.
On the other hand, I do have evidence that the Mac is actually slow. E.g., when I start to load a slashdot page at work, I often give up, switch over to the XP machine on the KVM switch, and go load it there, and finish ahead of the Mac. The XP machine is an ancient P2 400 with 384 megs of RAM, the Mac is an ancient B&W G3 300 MHz with about 600 meg of RAM, so the machines are comparable (both pathetic by modern standards, but comparable). So, it actually appears that the Mac is slow at browsing, and IE works in such a way to emphasize that slowness, making it seem unbearably slow.
Also, a lot of apps, and Finder, aren't as threaded as they could be. While IE, for instance, is busy getting that big slashdot page ready to display, the dreaded spinning color-ball shows up, so you can't switch back and view the other pages you were reading.
Finally, much Apple software IS slow. There's a thread on comp.sys.mac.advocacy about this right now, where someone was saying that the new generation of iApps seem slower than the previous iApps, and pointing out an apparent correlation between those written in Carbon (fast) and Cocoa (slow). However, other people have pointed out examples of fast Cocoa apps, so that is not the problem. Most interesting was someone who wrote their own photo manager, and compared to iPhoto. For some things, his is 2 orders of magnitude faster than iPhoto. Evidently, Apple simply used crappy algorithms in iPhoto. Apple's mail program is similarly problematic when mailboxes get large. A lot of people on comp.sys.mac.advocacy have given up on it and switched to Eudora, and report their Macs are nice and fast at mail then.