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iBluetooth

macrumors 6502a
Mar 29, 2016
726
1,992
I'm having major network issues after the computer sleeps. Would not recommend it, but I installed it on my second test machine.
 

DribbleCastle

macrumors 6502
Apr 17, 2009
429
315
Seattle, WA
Well it runs considerably worse than 10.10.5. But then again, El Capitan wasn't a performance champ either in comparison to Yosemite.

Funny that you see it that way as I think El Capitan was a big improvement over Yosemite in terms of performance. Might depend on your specific Mac model but general UI animation was poor on Yosemite for me.
 

ajay96

macrumors 6502a
Jul 29, 2013
605
255
New York, NY
Public beta and beta 2 of the dev both seem to be fine to use on a daily basis, in my opinion. Haven't had any issues really.
 

grahamperrin

macrumors 601
Jun 8, 2007
4,942
648
Following a few more tests of 16A239m, I no longer treat it as good enough for daily use.

That's not a criticism of the software. Just a general observation, that the effects (some of which I'll not disclose) of some bugs are too disruptive for my liking.
 
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zigmund555

macrumors member
Jun 12, 2006
41
28
I think you can use it as a daily driver, but if you have something absolutely mission critical you might want to wait.

My work is using Mail, Preview, Dropbox, and the Office365 suite, latest fast insider build. There are some weird things that happen sometimes but nothing that's really broken for me. Sometimes files don't drag correctly out of Office (which is a bug that pops up occasionally for me), Preview crashes frequently when combining PDFs or adding pages to PDFs. Office has a few rendering bugs, but I report those to MSFT.
 

grahamperrin

macrumors 601
Jun 8, 2007
4,942
648
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grahamperrin

macrumors 601
Jun 8, 2007
4,942
648
https://forums.macrumors.com/posts/23128028 iCloud Drive

Uploading is so excruciatingly slow, even with the OS in safe mode, that I can't effectively test the service or the new features. If I'm lucky, a few hundred bytes per second. YMMV and we should make no judgement whilst things are pre-release. …

Without safe mode: kernel_task hogs the CPUs so much, from the outset, that most things are close to a standstill. Until recently I could work around the hogging very simply – a safe boot followed by a normal boot – but that workaround is no longer effective.

No exotic use of KEXTs. I suspect that my current test set of data (a few thousand files, a little over 1 GB) is simply too much for the current build of the OS with my hardware.

MacBookPro8,2 with 4 GB memory, booted from a hard disk drive limited to USB 2.0.

Screen shots from Friday Thursday 14th July:
2016-07-14 18.48.46.png
2016-07-14 19.14.20.png


Postscript, 2016-07-22: https://forums.macrumors.com/posts/23152707
 
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jagooch

macrumors 6502a
Jul 17, 2009
804
249
Denver, co
Just so you know, these gentlemen are talking about the macOS beta, since we are in the macOS 10.12 category of the forum.

On Topic: I don't think I'll install the public beta when it's released, unless it turns out that it's very stable.
Same, I'm itching to install it the way I did the EL Capitan public beta, but also remember the inconvenience of certain apps not working or being unstable. I use iphone/ipad much more than my Macbook Pro, so I am definitely not going to install beta software on them again.
I still remember when my alarm stopped going off on my phone and I was late to work a few days in a row until I broke out an old alarm clock.

If you can't tell, I'm still on the fence because my inner geek want to be cutting edge, while the more responsible part of my brain is risk-adverse. :)
 
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Feenician

macrumors 603
Jun 13, 2016
5,313
5,100
No major issues for me. Wifi sometimes has to be switched off and on again after sleep, which is inconvenient.

Workload consists of Office, Webex, Omnigraffle, Filezilla a few terminal sessions and two memory and CPU hungy VM's taking, collectively 12Gb RAM and 6 (thread) cores (heavily loaded at times), with the VM's hosted from an external Samsung T1 SSD on a mid 2015 15 inch MBP.

At the end of my work day I can suspend these and the computer functions normally, apart from the aforementioned wifi issue. Seems stable to me.
 

grahamperrin

macrumors 601
Jun 8, 2007
4,942
648
I'm defragmenting the boot disk. Neither the catalog B-tree nor the attributes B-tree was fragmented, so I don't expect a significant improvement but still, I should do this before reviewing the hogging.
 

tjleonard

macrumors 6502a
Jun 25, 2013
581
381
No major issues for me. Wifi sometimes has to be switched off and on again after sleep, which is inconvenient.

Workload consists of Office, Webex, Omnigraffle, Filezilla a few terminal sessions and two memory and CPU hungy VM's taking, collectively 12Gb RAM and 6 (thread) cores (heavily loaded at times), with the VM's hosted from an external Samsung T1 SSD on a mid 2015 15 inch MBP.

At the end of my work day I can suspend these and the computer functions normally, apart from the aforementioned wifi issue. Seems stable to me.
I'm using El Capitan and have to disable my wifi and enable my wifi at least 1 time per day when waking it from sleep. It's inconvienent on a beta...it's a waste of time on a polished product!
 

grahamperrin

macrumors 601
Jun 8, 2007
4,942
648
disable my wifi and enable my wifi

What's the model identifier of the Mac? You'll find it in System Information. There'll probably be an explanation for the problem but I'll need (at least) basic hardware information before steering to relevant topics.
 

grahamperrin

macrumors 601
Jun 8, 2007
4,942
648
I'm defragmenting the boot disk. Neither the catalog B-tree nor the attributes B-tree was fragmented, so I don't expect a significant improvement

I used iDefrag 4.x on OS X 10.9.5 to perform a full optimisation of the Sierra startup volume. Not the first time that I had done so, but today I allowed changes to the two B-trees (each one was rebuilt and then compacted). Whilst the map was on screen I removed a few noticeably large items, including a downloaded .zip file for Xcode and Apple's installer for the OS.

The next start and restart of Sierra were enormously improved, compared to all prior starts.

For the restart test I ran Activity Monitor, Console, Disk Utility, Finder, Firefox, OmniWeb, Safari, System Preferences and Terminal; and (as usual) I preferred to have applications restored. From the time of entering my FileVault 2 pass phrase, to the time when all nine windowed applications responded acceptably well: around ten minutes. Yes, that was an enormous improvement (bear in mind, the use of USB 2.0).

I created a new user, used fast user switching and left the Mac alone. Around two hours later I logged out, unlocked the screen of the first user and found that again, kernel_task was endlessly hogging the CPU (typically more than eighty percent). I neither took note of when the degradation began, nor attempted to determine the causes.

Whilst the current hogging might be as bad as before, the ill effects are marginally less noticeable. That margin is probably thanks to the two optimised B-trees.
 
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RednBlue

macrumors regular
Dec 17, 2013
209
81
Reading UK
As my experience with the first Sierra beta was nothing short of disastrous, and my El Cap setup is working pretty much perfectly (kiss of death :oops:!!) i'm going to stick with it until after the public Gold release has happened and been well tested and reported.
 
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saudor

macrumors 68000
Jul 18, 2011
1,511
2,114
I'm defragmenting the boot disk. Neither the catalog B-tree nor the attributes B-tree was fragmented, so I don't expect a significant improvement but still, I should do this before reviewing the hogging.
Defragging? Im assuming this isnt a SSD?
 

Ritsuka

Cancelled
Sep 3, 2006
1,464
969
You don't because softwares to defrag are horrible, and it takes a lot of time, and it's easier to just buy a ssd. But fragmentation will always be a real issue on normal disks.
 

grahamperrin

macrumors 601
Jun 8, 2007
4,942
648
Im assuming …

No need for assumptions :) the test environment was outlined in https://forums.macrumors.com/posts/23128071 above.

Technical

Defragging?

More than just defragmentation of unchanged data/metadata files.

For my most recent round of testing, I allowed significant changes to two large and essential metadata files: the catalog B-tree and the attributes B-tree. Such files are normally written very close to the start of the (HFS Plus) volume and:
  • where the volume is on rotational media, that closeness goes towards optimal performance
  • with or without rotational media, contiguity of both files goes towards optimal performance.

For this round, I allowed iDefrag to make the required changes to those two files.

When I last checked, iDefrag 4.x made use of fsck_hfs(8) for each rebuild. One rebuild (option -R) with flag a, another rebuild with flag c.

A recent view of the layout, showing an attributes file that is relatively small (less than 1 GB):

2016-08-15 06.45.39.png


From that article it seems to me that Lewis Painter lacks some breadth and depth of experience.


Less technically

For pre-release Sierra, I'm performing very lightweight tests in an unusually constrained environment.

In the past, I more often performed heavyweight tests in a good or better-than-average environment.

Either way: there's likelihood of reproducibly exposing a symptom (maybe a bug) that might never be found with, say, an all-SSD environment.

The greater the exposure before release of the operating system, the easier it should be for Apple to address issues in good time.
 
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grahamperrin

macrumors 601
Jun 8, 2007
4,942
648
Some time before the most recent update, my setup drifted back into hogging the CPU. Neither an update, nor a safe boot, worked around the problem.

Critically: I can't get the redesigned Console to present what's required, so it's unnecessarily difficult for me to attempt diagnoses.

All things considered, I'm shelving the pre-release. I might start it occasionally if I learn that updates are available, and I'll probably start it after a release is distributed, but for now: testing is far from worthwhile.

From the little that I read in https://forums.macrumors.com/forums/macos-sierra-10-12-beta.195/ it does seem that most users are reasonably pleased. I hope that other users don't find kernel_task hogging the CPU after the OS is released.
 
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