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From: David Teigland <teigland@redhat.com>
To: "heming.zhao@suse.com" <heming.zhao@suse.com>
Cc: "rogerheflin@gmail.com" <rogerheflin@gmail.com>,
	"zkabelac@redhat.com" <zkabelac@redhat.com>,
	Martin Wilck <martin.wilck@suse.com>,
	prajnoha@redhat.com,
	"linux-lvm@redhat.com" <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] Discussion: performance issue on event activation mode
Date: Thu, 17 Jun 2021 10:27:43 -0500	[thread overview]
Message-ID: <20210617152743.GA25086@redhat.com> (raw)
In-Reply-To: <c5c40605-9859-4086-9717-7381b0309a2c@suse.com>

On Thu, Jun 17, 2021 at 11:46:55AM +0800, heming.zhao@suse.com wrote:
> the booting time out problem cause by two side:
> 1> libudev take much time
> 2> thousands of lvm2-pvscan@.service running on the same time
> 
> the new patch or existing code (with obtain_device_list_from_udev=0) can avoid <1>.
> but <2> is still not to avoid. (direct activation can avoid it)

Thanks, I'll set up a similar test, hopefully we can avoid such extreme
delays with the current activation mechanism.  I expect we'll also look at
combining a fixed lvm-activation service followed by uevent-driven
activations, which should be more efficient.

Dave

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  reply	other threads:[~2021-06-17 15:32 UTC|newest]

Thread overview: 87+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-06  6:15 [linux-lvm] Discussion: performance issue on event activation mode heming.zhao
2021-06-06 16:35 ` Roger Heflin
2021-06-07 10:27   ` Martin Wilck
2021-06-07 15:30     ` heming.zhao
2021-06-07 15:45       ` Martin Wilck
2021-06-07 20:52       ` Roger Heflin
2021-06-07 21:30     ` David Teigland
2021-06-08  8:26       ` Martin Wilck
2021-06-08 15:39         ` David Teigland
2021-06-08 15:47           ` Martin Wilck
2021-06-08 16:02             ` Zdenek Kabelac
2021-06-08 16:05               ` Martin Wilck
2021-06-08 16:03             ` David Teigland
2021-06-08 16:07               ` Martin Wilck
2021-06-15 17:03           ` David Teigland
2021-06-15 18:21             ` Zdenek Kabelac
2021-06-16 16:18             ` heming.zhao
2021-06-16 16:38               ` David Teigland
2021-06-17  3:46                 ` heming.zhao
2021-06-17 15:27                   ` David Teigland [this message]
2021-06-08 16:49         ` heming.zhao
2021-06-08 16:18       ` heming.zhao
2021-06-09  4:01         ` heming.zhao
2021-06-09  5:37           ` Heming Zhao
2021-06-09 18:59             ` David Teigland
2021-06-10 17:23               ` heming.zhao
2021-06-07 15:48 ` Martin Wilck
2021-06-07 16:31   ` Zdenek Kabelac
2021-06-07 21:48   ` David Teigland
2021-06-08 12:29     ` Peter Rajnoha
2021-06-08 13:23       ` Martin Wilck
2021-06-08 13:41         ` Peter Rajnoha
2021-06-08 13:46           ` Zdenek Kabelac
2021-06-08 13:56             ` Peter Rajnoha
2021-06-08 14:23               ` Zdenek Kabelac
2021-06-08 14:48               ` Martin Wilck
2021-06-08 15:19                 ` Peter Rajnoha
2021-06-08 15:39                   ` Martin Wilck
2021-09-09 19:44         ` David Teigland
2021-09-10 17:38           ` Martin Wilck
2021-09-12 16:51             ` heming.zhao
2021-09-27 10:00           ` Peter Rajnoha
2021-09-27 15:38             ` David Teigland
2021-09-28  6:34               ` Martin Wilck
2021-09-28 14:42                 ` David Teigland
2021-09-28 15:16                   ` Martin Wilck
2021-09-28 15:31                     ` Martin Wilck
2021-09-28 15:56                     ` David Teigland
2021-09-28 18:03                       ` Benjamin Marzinski
2021-09-28 17:42                     ` Benjamin Marzinski
2021-09-28 19:15                       ` [dm-devel] " Martin Wilck
2021-09-28 19:15                         ` Martin Wilck
2021-09-29 22:06                       ` Peter Rajnoha
2021-09-30  7:51                         ` Martin Wilck
2021-09-30  8:07                           ` heming.zhao
2021-09-30  9:31                             ` Martin Wilck
2021-09-30 11:41                             ` Peter Rajnoha
2021-09-30 15:32                               ` heming.zhao
2021-10-01  7:41                                 ` Martin Wilck
2021-10-01  8:08                                   ` Peter Rajnoha
2021-09-30 11:29                           ` Peter Rajnoha
2021-09-30 16:04                             ` David Teigland
2021-09-30 14:41                           ` Benjamin Marzinski
2021-10-01  7:42                             ` Martin Wilck
2021-09-29 21:53                 ` Peter Rajnoha
2021-09-30  7:45                   ` Martin Wilck
2021-09-29 21:39               ` Peter Rajnoha
2021-09-30  7:22                 ` Martin Wilck
2021-09-30 14:26                   ` David Teigland
2021-09-30 15:55                 ` David Teigland
2021-10-01  8:00                   ` Peter Rajnoha
2021-10-18  6:24                   ` Martin Wilck
2021-10-18 15:04                     ` David Teigland
2021-10-18 16:56                       ` heming.zhao
2021-10-18 21:51                       ` Zdenek Kabelac
2021-10-19 17:18                         ` David Teigland
2021-10-20 14:40                       ` Martin Wilck
2021-10-20 14:50                         ` David Teigland
2021-10-20 14:54                           ` Martin Wilck
2021-10-20 15:12                             ` David Teigland
2021-06-07 16:40 ` David Teigland
2021-07-02 21:09 ` David Teigland
2021-07-02 21:22   ` Martin Wilck
2021-07-02 22:02     ` David Teigland
2021-07-03 11:49       ` heming.zhao
2021-07-08 10:10         ` Tom Yan
2021-07-02 21:31   ` Tom Yan

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