Public bug reported: Microsoft would like to request the following upstream commit in all releases supported on Azure. This commit improves a signification delay in hibernation/resume:
55c4478a8f0e("PM: hibernate: Batch hibernate and resume IO requests") Details of this commit: Hibernate and resume process submits individual IO requests for each page of the data, so use blk_plug to improve the batching of these requests. Testing this change with hibernate and resumes consistently shows merging of the IO requests and more than an order of magnitude improvement in hibernate and resume speed is observed. One hibernate and resume cycle for 16GB RAM out of 32GB in use takes around 21 minutes before the change, and 1 minutes after the change on a system with limited storage IOPS. ** Affects: linux-azure (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1904458 Title: [linux-azure] Batch hibernate and resume IO requests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1904458/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs