weppa's latest activity
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Wweppa reacted to bdr's post in the thread Increased latency on disks since 9.2.6 and associated 7.0.x kernel with
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I tested and can confirm the problem is not present in kernel 7.0.14-5-pve -
Wweppa replied to the thread Increased latency on disks since 9.2.6 and associated 7.0.x kernel.I tried contacting the linux-kernel-block maintainer but I did the unthinkable ; I sent him a short and polite email instead of subscribing to a mailing list full of experts. I'l leave it to someone else to try to have these people care about the...
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Wweppa replied to the thread Increased latency on disks since 9.2.6 and associated 7.0.x kernel.You are right to underline that I (and some of us) should spend time migrating from mdraid, I'll dig deeper into that. However, that bug is a bug in the linux kernel (not specific to mdraid, it affect plain disks , loopbacks, etc) , it's even not...
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Wweppa replied to the thread Increased latency on disks since 9.2.6 and associated 7.0.x kernel.At this stage, it clearly seems to be a bug in the kernel and I find it sad that so few people complain, which indicates not many people are monitoring their hardware closely. I have not identified a way to communicate with kernel devs, I mean...
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Wweppa reacted to Galaxis's post in the thread Opt-in Linux 7.0 Kernel for Proxmox VE 9 available with Like.
Ok, so: There's definitively something odd with the block layer statistics for phyiscal devices in these kernel versions (7.0.14-8 now). In my log, I see sudden large jumps in write ticks and time_in_queue values, like in this example (leading...
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Wweppa replied to the thread Opt-in Linux 7.0 Kernel for Proxmox VE 9 available.Is there a way to « Escalate « this to Kernel maintainers ?
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Wweppa reacted to Galaxis's post in the thread Opt-in Linux 7.0 Kernel for Proxmox VE 9 available with Like.
Munin is a basic monitoring tool that mostly consists of a daemon running plugins (scripts) that produce output in Munin format, and a data collector that polls for this information, usually every five minutes. The collector writes everything...
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Wweppa replied to the thread Opt-in Linux 7.0 Kernel for Proxmox VE 9 available.Interesting !
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Wweppa replied to the thread Opt-in Linux 7.0 Kernel for Proxmox VE 9 available.This creates spikes that are well above munin defaults for sending emails. And these defaults are set by munin maintainers ? It's 0:3 by default (warning/email if above 3 seconds). It's like that since 20 years I believe... WARNINGs: Write IO...
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Wweppa replied to the thread Opt-in Linux 7.0 Kernel for Proxmox VE 9 available.If this ever gets to a kernel developer : this is super easy to replicate ; just add munin package on a vm or LXC, or even on the host itself. monitoring disk latency is default. pve devs say for -6 update submodules and patches to...
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Wweppa replied to the thread Opt-in Linux 7.0 Kernel for Proxmox VE 9 available.I'm back at -5 and the problem vanished . So basically the problem appeared in -6 (as per Galaxis) , is still there in -8, I was just a bit late in the game. If it's a new kernel feature and not the sign of the disks getting crazy, it sure...
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Wweppa reacted to Galaxis's post in the thread Opt-in Linux 7.0 Kernel for Proxmox VE 9 available with Like.
Since @weppa writes it was still fine in -5 (which I skipped coming from -4), and the effect first showed up for me in -6, something must have happened between those two versions.
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Wweppa replied to the thread Opt-in Linux 7.0 Kernel for Proxmox VE 9 available.@Galaxis you're not crazy ; https://forum.proxmox.com/threads/increased-latency-on-disks-since-9-2-6-and-associated-7-0-x-kernel.185498/ That is my own topic I created. It's basically unusable (I've got 440 emil alerts this morning) and very...
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Wweppa replied to the thread Increased latency on disks since 9.2.6 and associated 7.0.x kernel.Thanks @Neobin ! In the meantime proxmox-boot-tool kernel pin 7.0.14-5-pve proxmox-boot-tool refresh UPDATE : I can confirm the problem DISAPPEARS with kernel 7.0.14-5 So it's specific to kernels after this one.
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Wweppa posted the thread Increased latency on disks since 9.2.6 and associated 7.0.x kernel in Proxmox VE: Installation and configuration.I have a couple of proxmox VE hosts, running 9.2.4 with 7.0 kernel. These systems are updated regularly (like once a month) with proper reboot For the last update (9.2.4 to 9.2.6 - on the 7.0 kernel) I have something weird happening that trigger...
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