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Date: Tue, 9 Jul 2013 20:39:49 +0500
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From: Micky <mickylmartin@gmail.com>
Subject: Re: [linux-lvm] Very slow i/o after snapshotting
Reply-To: LVM general discussion and development <linux-lvm@redhat.com>
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To: Marian Csontos <mcsontos@redhat.com>
Cc: Zdenek Kabelac <zkabelac@redhat.com>, LVM general discussion and development <linux-lvm@redhat.com>

I meant alignment for all dm entries 0 through 31 is zero!


>> What does the `lsblk -t` say? Could be an alignment issue.
>
> 0 through 31
>
>> What's `free` saying about the free memory and cache? (dmeventd on 6.4 is
>> trying to lock a large chunk of address space in RAM (~100M)
>
> Cached mem looks good.
> Dmeventd. Right. It is. Isn't it spawed everytime an LV is created?
> root      6813  0.0  1.4 197056 11044 ?        S<s  May26   2:44 /sbin/dmeventd