9 ms·

Linux 3.15 Can Resume From Suspend Faster

162 points by arunc 13y ago

SEJeff 13y ago
FYI the site is down. Google cached version: http://goo.gl/JifQzf http://goo.gl/JifQzf
KayEss 13y ago
Might be interesting, but the site is down already
- khc 13y ago
  it's resuming from suspend
- witty_username 13y ago
  Oddly the Google Cache link also doesn't load.
  - anon_d 13y ago
    I did for me once I switched to the text-only version: http://webcache.googleusercontent.com/search?q=cache:https://01.org/suspendresume/blogs/tebrandt/2013/hard-disk-resume-optimization-simpler-approach&rlz=1C1CHFX_enUS519US519&es_sm=93&strip=1 http://webcache.googleusercontent.com/search?q=cache:https:/...
sp332 13y ago
Here's an archived version, while the site is down: http://web.archive.org/web/20140331181833/https://01.org/suspendresume/blogs/tebrandt/2013/hard-disk-resume-optimization-simpler-approach http://web.archive.org/web/20140331181833/https://01.org/sus... I don't see any mention of version 3.15, just a patch and some tests with 3.11? SEJeff: don't use link shorteners.
- shrugged 13y ago
  It got merge in 3.15 you can see it in linus tree at http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b7e70ca9c7d7f049bba8047d7ab49966fd5e9e9d http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.g...
kragniz 13y ago
This looks like it is from back in January 24, 2014. Has it now been accepted into 3.15? Regardless, is this what OSX does? From my experience, it is drastically faster at resuming.
- nextweek2 13y ago
  Yes it has been merged, however given that the merge window only opened recently the 3.15 release will be 3-4 months away. Given that time frame its not likely that 3.15 will make it into the autumns Linux distribution releases. Probably be a year before this gets into the hands of users. (unless someone backports it or you build your own kernel)
  - dbaupp 13y ago
    Or if one is using a distribution with rolling-releases, or just one that puts kernel updates into its repositories.
    - josteink 13y ago
      It sounds like you're using a distro that does just this, but is too modest to go name-dropping. May I ask what distro(s) you had in mind?
      - dbaupp 13y ago
        I seem to get kernel updates using Debian Unstable (I don't pay much attention; but my current kernel is 3.13 and I installed my current OS years ago) and I think Arch does too. I'm sure there's others.
      - chronid 13y ago
        Gentoo, Arch at least (and related distros). I also believe Fedora does that.
      - zanny 13y ago
        Suse tumbleweed, the Kernel Developers PPA, Debian Experimental / Unstable, Arch, Fedora Rawhide, and Gentoo all deliver new kernels usually within a month of release, most within days (albeit more buggy).
Watabou 13y ago
Interestingly, OS X has the fastest resume from suspend I've ever seen. I'll see if this beats it.
- Mikeb85 13y ago
  Must be pretty quick because Ubuntu resumes before I can fully open my laptop lid...
  - contingencies 13y ago
    I was going to post the same. Gentoo + Linux 3.14 + ZFS + dual SSDs + Macbook Pro 17" hardware (~2010). Theory: Hardware subsystems on MBPs may have relatively strong power up speeds versus some other laptops.
    - AndrewDucker 13y ago
      As the slowdown is waiting for the disk to spin up, anything with an SSD will restart faster than something without...
    - XorNot 13y ago
      Do you have hibernate working on that setup or just resume? ZoL is great, but not having hibernate is a killer.
      - contingencies 13y ago
        Whatever pm-suspend is. Works great for me.
  - keithpeter 13y ago
    Debian SID: not quite so fast but certainly close. Thinkpad X00s. keith@mocha:~$ uname -a Linux mocha 3.13-1-amd64 #1 SMP Debian 3.13.7-1 (2014-03-25) x86_64 GNU/Linux
  - bananas 13y ago
    Lucky you. Mine manages to hang before I can fully open my laptop lid! (12.04 LTS). Reverted to windows and using Linux in a VM.
AndrewDucker 13y ago
This seems to be a similar approach to the one taken by Windows[0] There were a causes for the poor resume time, but a large contributor was device resume time. Since the OS serialized S0 IRPs to all devices in the PnP tree, the time for each device to resume added sequentially to the system's resume time. The OS serialization of the S0 IRPs could not change for Windows XP, so the problem was attacked at the other end...each driver would complete the S0 IRP as fast as it could so the OS could resume quickly and then asynchronously power up the device. This way each device could power up in parallel and the total time to power up was not sequential (nor was it only the longest of any device to power up since there is still ordering between parent and child devices) and resume time could be dramatically slower. [0]http://blogs.msdn.com/b/doronh/archive/2007/10/15/fast-resume-and-how-if-affects-your-driver.aspx http://blogs.msdn.com/b/doronh/archive/2007/10/15/fast-resum...
- praseodym 13y ago
  And that was for Windows XP, 13 years ago...
  - danford 13y ago
    I switched from XP to Ubuntu about 6 years ago. At the time I was running an old dell laptop that had been shipped with XP. Perhaps their concept is similar, but my resume time in Ubuntu was a lot faster than that of XP. Perhaps they had the right idea but didn't execute it perfectly, hopefully the Linux devs will get it right. I'm impressed by the resume times in windows 7 on faster computers but on more budget systems Linux still seems to be the king of resume times and performance (at least in my experience). I've only used windows 8 on an employees laptop and from what I can tell, it wasn't made to perform well on his Toshiba to say the least. I've seen both windows 7 and windows 8 running very well, much better than linux, on the right hardware though. The performance of windows on budget hardware (75% of consumer) is mediocre at best, which is unfortunate, but what's even more unfortunate is that because a select few can get Windows performing amazingly on great hardware, the consumer market seems to think it runs amazingly everywhere. Hopefully soon it will, or people will come to their senses and realize installing windows on a low budget (average consumer grade) system is more trouble than it's worth.
deleted 13y ago
[deleted]
ansgri 13y ago
Offtopic, but they've got real cool domain (01.org), and I don't see no sites at 02.org etc; even for 01.org the InterNIC tells nothing! (whois limit exceeded) http://reports.internic.net/cgi/whois?whois_nic=01.org&type=domain http://reports.internic.net/cgi/whois?whois_nic=01.org&type=... Could somebody please comment on this?
- ansgri 13y ago
  I'm sorry, for some weird reason my browser didn't load from the first try all those 0\d.org sites that apparently do exist.

162 points by arunc 13y ago

SEJeff 13y ago

FYI the site is down. Google cached version: http://goo.gl/JifQzf http://goo.gl/JifQzf

KayEss 13y ago

Might be interesting, but the site is down already

khc 13y ago
it's resuming from suspend
witty_username 13y ago
Oddly the Google Cache link also doesn't load.
- anon_d 13y ago
  I did for me once I switched to the text-only version: http://webcache.googleusercontent.com/search?q=cache:https://01.org/suspendresume/blogs/tebrandt/2013/hard-disk-resume-optimization-simpler-approach&rlz=1C1CHFX_enUS519US519&es_sm=93&strip=1 http://webcache.googleusercontent.com/search?q=cache:https:/...

sp332 13y ago

Here's an archived version, while the site is down: http://web.archive.org/web/20140331181833/https://01.org/suspendresume/blogs/tebrandt/2013/hard-disk-resume-optimization-simpler-approach http://web.archive.org/web/20140331181833/https://01.org/sus... I don't see any mention of version 3.15, just a patch and some tests with 3.11? SEJeff: don't use link shorteners.

shrugged 13y ago
It got merge in 3.15 you can see it in linus tree at http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b7e70ca9c7d7f049bba8047d7ab49966fd5e9e9d http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.g...

kragniz 13y ago

This looks like it is from back in January 24, 2014. Has it now been accepted into 3.15? Regardless, is this what OSX does? From my experience, it is drastically faster at resuming.

nextweek2 13y ago
Yes it has been merged, however given that the merge window only opened recently the 3.15 release will be 3-4 months away. Given that time frame its not likely that 3.15 will make it into the autumns Linux distribution releases. Probably be a year before this gets into the hands of users. (unless someone backports it or you build your own kernel)
- dbaupp 13y ago
  Or if one is using a distribution with rolling-releases, or just one that puts kernel updates into its repositories.
  - josteink 13y ago
    It sounds like you're using a distro that does just this, but is too modest to go name-dropping. May I ask what distro(s) you had in mind?
    - dbaupp 13y ago
      I seem to get kernel updates using Debian Unstable (I don't pay much attention; but my current kernel is 3.13 and I installed my current OS years ago) and I think Arch does too. I'm sure there's others.
    - chronid 13y ago
      Gentoo, Arch at least (and related distros). I also believe Fedora does that.
    - zanny 13y ago
      Suse tumbleweed, the Kernel Developers PPA, Debian Experimental / Unstable, Arch, Fedora Rawhide, and Gentoo all deliver new kernels usually within a month of release, most within days (albeit more buggy).

Watabou 13y ago

Interestingly, OS X has the fastest resume from suspend I've ever seen. I'll see if this beats it.

Mikeb85 13y ago
Must be pretty quick because Ubuntu resumes before I can fully open my laptop lid...
- contingencies 13y ago
  I was going to post the same. Gentoo + Linux 3.14 + ZFS + dual SSDs + Macbook Pro 17" hardware (~2010). Theory: Hardware subsystems on MBPs may have relatively strong power up speeds versus some other laptops.
  - AndrewDucker 13y ago
    As the slowdown is waiting for the disk to spin up, anything with an SSD will restart faster than something without...
  - XorNot 13y ago
    Do you have hibernate working on that setup or just resume? ZoL is great, but not having hibernate is a killer.
    - contingencies 13y ago
      Whatever pm-suspend is. Works great for me.
- keithpeter 13y ago
  Debian SID: not quite so fast but certainly close. Thinkpad X00s. keith@mocha:~$ uname -a Linux mocha 3.13-1-amd64 #1 SMP Debian 3.13.7-1 (2014-03-25) x86_64 GNU/Linux
- bananas 13y ago
  Lucky you. Mine manages to hang before I can fully open my laptop lid! (12.04 LTS). Reverted to windows and using Linux in a VM.

AndrewDucker 13y ago

This seems to be a similar approach to the one taken by Windows[0] There were a causes for the poor resume time, but a large contributor was device resume time. Since the OS serialized S0 IRPs to all devices in the PnP tree, the time for each device to resume added sequentially to the system's resume time. The OS serialization of the S0 IRPs could not change for Windows XP, so the problem was attacked at the other end...each driver would complete the S0 IRP as fast as it could so the OS could resume quickly and then asynchronously power up the device. This way each device could power up in parallel and the total time to power up was not sequential (nor was it only the longest of any device to power up since there is still ordering between parent and child devices) and resume time could be dramatically slower. [0]http://blogs.msdn.com/b/doronh/archive/2007/10/15/fast-resume-and-how-if-affects-your-driver.aspx http://blogs.msdn.com/b/doronh/archive/2007/10/15/fast-resum...

praseodym 13y ago
And that was for Windows XP, 13 years ago...
- danford 13y ago
  I switched from XP to Ubuntu about 6 years ago. At the time I was running an old dell laptop that had been shipped with XP. Perhaps their concept is similar, but my resume time in Ubuntu was a lot faster than that of XP. Perhaps they had the right idea but didn't execute it perfectly, hopefully the Linux devs will get it right. I'm impressed by the resume times in windows 7 on faster computers but on more budget systems Linux still seems to be the king of resume times and performance (at least in my experience). I've only used windows 8 on an employees laptop and from what I can tell, it wasn't made to perform well on his Toshiba to say the least. I've seen both windows 7 and windows 8 running very well, much better than linux, on the right hardware though. The performance of windows on budget hardware (75% of consumer) is mediocre at best, which is unfortunate, but what's even more unfortunate is that because a select few can get Windows performing amazingly on great hardware, the consumer market seems to think it runs amazingly everywhere. Hopefully soon it will, or people will come to their senses and realize installing windows on a low budget (average consumer grade) system is more trouble than it's worth.

deleted 13y ago

[deleted]

ansgri 13y ago

Offtopic, but they've got real cool domain (01.org), and I don't see no sites at 02.org etc; even for 01.org the InterNIC tells nothing! (whois limit exceeded) http://reports.internic.net/cgi/whois?whois_nic=01.org&type=domain http://reports.internic.net/cgi/whois?whois_nic=01.org&type=... Could somebody please comment on this?

ansgri 13y ago
I'm sorry, for some weird reason my browser didn't load from the first try all those 0\d.org sites that apparently do exist.