[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
It looks like this was finally properly addressed in 0.7, available since Ubuntu 22.04/jammy, see https://launchpad.net/ubuntu/+source/zram- config/+changelog ** Changed in: zram-config (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
** Changed in: zram-config (Ubuntu) Status: Expired => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
[Expired for zram-config (Ubuntu) because there has been no activity for 60 days.] ** Changed in: zram-config (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
I updated zram-config package with chase9 patch and uploaded it to my test PPA: https://launchpad.net/~oibaf/+archive/ubuntu/test/+packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
@chase9 : your tests compared default zram-config vs. your customized zram-config. However, as you noticed, default zram-config already enabled multiple streams for every device. Probably this is by accident, since multiple streams were added by default in the kernel after zram-config package already enabled multiple devices, and no one ever noticed. So it would also be useful to test the multiple devices *without multiple streams* vs. single device *with multiple streams*. Thanks. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
@chase9 : thanks for testing! Would you like to also test performance with different compression algorithms? See bug 1856043. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
ubuntu-release has been subscribed to this bug, but I don't see why. This is not a well-formed feature freeze exception request, and it looks like the issue here is a bug, not a new feature. ** Changed in: zram-config (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
This was tested in a VM running Ubuntu Server 20.04 with fewer than 29 cores dedicated to it, so I didn't run into the bug. Unfortunately the production server wasn't available for testing (especially since each benchmark took over an hour!). Yes, custom zram-config means the sram-config but with the patch applied. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
How were you able to enable "default zram-config" if it has this bug? What do you mean exactly with "custom zram-config"? Just adding your 99_fixcores.patch? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
Be sure to click the last link, as it will show you all three tests side-by-side. Overall, I would say that the custom zram-config doesn't much matter to the performance. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
Here it is with the customized zram-config https://openbenchmarking.org/result/2009143-FI-SWAP4713310 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
Here is a benchmark with the default zram-config https://openbenchmarking.org/result/2009144-FI-SWAP6511210 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
Running benchmarks now. I'll upload as they get done. Here's the baseline (stock Ubuntu Server install): https://openbenchmarking.org/result/2009148-FI-SWAP7694110 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
Unfortunately I only have a vague idea that I tested multi-stream, but then reverted to multiple devices because of the poor performance. Probably I just tested one of my scripts I use for managing my own stuff, something that used a lot of CPU and RAM. Don't remember anything else, sorry. :( -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
I can test this tonight on my Ubuntu server. Otherwise, I can test now on a Fedora workstation. Do you have any tips for benchmarking swap? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
Before using multiple streams it would be nice to test the performance (IIRC I did some test many years ago, and it scaled worse than having multiple devices, but not really sure if my test was actually reliable and eventually if that still applies with a recent kernel). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
It's worth noting the multiple streams Oibaf mentioned are currently the default. On my system, there are the max number of swap devices each with 32 streams. I propose we only have one device and use the default behavior of max_comp_streams = number of CPUs. It's my first time creating an apt patch, hopefully I've done it correctly. ** Patch added: "99_fixcores.patch" https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+attachment/5409127/+files/99_fixcores.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
I have 40 core machines, but I only get /dev/zram0 .. 25 used. # lsb_release -d Description:Ubuntu 18.04.1 LTS # systemctl --all --failed UNITLOAD ACTIVE SUBDESCRIPTION Ï zram-config.service loaded failed failed Initializes zram swaping # systemctl status zram-config.service Ï zram-config.service - Initializes zram swaping Loaded: loaded (/lib/systemd/system/zram-config.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Wed 2018-12-19 14:07:29 CET; 3s ago Process: 41212 ExecStart=/usr/bin/init-zram-swapping (code=exited, status=255) Main PID: 41212 (code=exited, status=255) Dec 19 14:07:29 host init-zram-swapping[41212]: no label, UUID=49e2e5a0-af6f-46e9-9cff-4df9be04acc5 Dec 19 14:07:29 host init-zram-swapping[41212]: swapon: /dev/zram38: swapon failed: Operation not permitted Dec 19 14:07:29 host init-zram-swapping[41212]: sh: echo: I/O error Dec 19 14:07:29 host init-zram-swapping[41212]: mkswap: /dev/zram39: warning: wiping old swap signature. Dec 19 14:07:29 host init-zram-swapping[41212]: Setting up swapspace version 1, size = 400.8 MiB (420233216 byte Dec 19 14:07:29 host init-zram-swapping[41212]: no label, UUID=e6b6cd37-8036-4466-a98d-df3e15af5626 Dec 19 14:07:29 host init-zram-swapping[41212]: swapon: /dev/zram39: swapon failed: Operation not permitted Dec 19 14:07:29 host systemd[1]: zram-config.service: Main process exited, code=exited, status=255/n/a Dec 19 14:07:29 host systemd[1]: zram-config.service: Failed with result 'exit-code'. Dec 19 14:07:29 host systemd[1]: Failed to start Initializes zram swaping. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
Note that with kernel 3.15, this should be revised. 3.15 indeed support multi-stream functionality: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=beca3ec71fe5490ee9237dc42400f50402baf83e It is no longer needed to set up many devices, just use 1 device and the use something like: echo `nproc` /sys/block/zram0/max_comp_streams (I still haven't tried it myself if it scales better or worse) For more info see: http://kernelnewbies.org/Linux_3.15#head- 52af9ef123b7c0792b09a1a0222fdc8c21ab5d4c -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: zram-config (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1078165] Re: zram-config fails to start/install on a system with more then 30 processors
The attachment zram-config.conf.patch of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-reviewers team please also unsubscribe the team from this bug report. [This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078165 Title: zram-config fails to start/install on a system with more then 30 processors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zram-config/+bug/1078165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
