Re: [linux-lvm] lvmpolld causes high cpu load issue

2022-08-17 Thread Gionatan Danti
Il 2022-08-17 20:54 Zdenek Kabelac ha scritto: https://github.com/prajnoha/sid Thanks for sharing. From the linked page: "SID positions itself on top of udev, reacting to uevents. It is closely interlinked and cooperating with udev daemon. The udev daemon is enhanced with specialized sid

Re: [linux-lvm] lvmpolld causes high cpu load issue

2022-08-17 Thread Zdenek Kabelac
Dne 17. 08. 22 v 19:35 Gionatan Danti napsal(a): Il 2022-08-17 17:26 Zdenek Kabelac ha scritto: I like the general idea of the udev watch. It is the magic that causes newly created partitions to magically appear in the system, which is Would disabling the watch rule be a reasonable approach

Re: [linux-lvm] lvmpolld causes high cpu load issue

2022-08-17 Thread Gionatan Danti
Il 2022-08-17 17:26 Zdenek Kabelac ha scritto: I like the general idea of the udev watch. It is the magic that causes newly created partitions to magically appear in the system, which is Would disabling the watch rule be a reasonable approach in this case? If the user want to scan a new

Re: [linux-lvm] lvmpolld causes high cpu load issue

2022-08-17 Thread Demi Marie Obenour
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Wed, Aug 17, 2022 at 05:26:08PM +0200, Zdenek Kabelac wrote: > Dne 17. 08. 22 v 15:41 Martin Wilck napsal(a): > > On Wed, 2022-08-17 at 14:54 +0200, Zdenek Kabelac wrote: > > > Dne 17. 08. 22 v 14:39 Martin Wilck napsal(a): > > > > > > > > >

Re: [linux-lvm] lvmpolld causes high cpu load issue

2022-08-17 Thread Zdenek Kabelac
Dne 17. 08. 22 v 15:41 Martin Wilck napsal(a): On Wed, 2022-08-17 at 14:54 +0200, Zdenek Kabelac wrote: Dne 17. 08. 22 v 14:39 Martin Wilck napsal(a): Let's make clear we are very well aware of all the constrains associated with udev rule logicĀ  (and we tried quite hard to minimize impact -

Re: [linux-lvm] lvmpolld causes high cpu load issue

2022-08-17 Thread David Teigland
On Wed, Aug 17, 2022 at 01:41:17PM +, Martin Wilck wrote: > I like the general idea of the udev watch. It is the magic that causes > newly created partitions to magically appear in the system, which is > very convenient for users and wouldn't work otherwise. I can see that > it might be

Re: [linux-lvm] lvmpolld causes high cpu load issue

2022-08-17 Thread Zdenek Kabelac
Dne 17. 08. 22 v 14:39 Martin Wilck napsal(a): On Wed, 2022-08-17 at 18:47 +0800, Heming Zhao wrote: On Wed, Aug 17, 2022 at 11:46:16AM +0200, Zdenek Kabelac wrote: ATM I'm not even sure if you are complaining about how CPU usage of lvmpolld or just huge udev rules processing overhead.

Re: [linux-lvm] lvmpolld causes high cpu load issue

2022-08-17 Thread Zdenek Kabelac
Dne 17. 08. 22 v 12:47 Heming Zhao napsal(a): On Wed, Aug 17, 2022 at 11:46:16AM +0200, Zdenek Kabelac wrote: Dne 17. 08. 22 v 10:43 Heming Zhao napsal(a): On Wed, Aug 17, 2022 at 10:06:35AM +0200, Zdenek Kabelac wrote: Dne 17. 08. 22 v 4:03 Heming Zhao napsal(a): On Tue, Aug 16, 2022 at

Re: [linux-lvm] lvmpolld causes high cpu load issue

2022-08-17 Thread Zdenek Kabelac
Dne 17. 08. 22 v 10:43 Heming Zhao napsal(a): On Wed, Aug 17, 2022 at 10:06:35AM +0200, Zdenek Kabelac wrote: Dne 17. 08. 22 v 4:03 Heming Zhao napsal(a): On Tue, Aug 16, 2022 at 12:26:51PM +0200, Zdenek Kabelac wrote: Dne 16. 08. 22 v 12:08 Heming Zhao napsal(a): Ooh, very sorry, the

Re: [linux-lvm] lvmpolld causes high cpu load issue

2022-08-17 Thread Zdenek Kabelac
Dne 17. 08. 22 v 4:03 Heming Zhao napsal(a): On Tue, Aug 16, 2022 at 12:26:51PM +0200, Zdenek Kabelac wrote: Dne 16. 08. 22 v 12:08 Heming Zhao napsal(a): Ooh, very sorry, the subject is wrong, not IO performance but cpu high load is triggered by pvmove. On Tue, Aug 16, 2022 at 11:38:52AM

Re: [linux-lvm] lvmpolld causes high cpu load issue

2022-08-16 Thread Zdenek Kabelac
Dne 16. 08. 22 v 12:08 Heming Zhao napsal(a): Ooh, very sorry, the subject is wrong, not IO performance but cpu high load is triggered by pvmove. On Tue, Aug 16, 2022 at 11:38:52AM +0200, Zdenek Kabelac wrote: Dne 16. 08. 22 v 11:28 Heming Zhao napsal(a): Hello maintainers & list, I bring a