Indexing Mail faster

[Thomas Leuxner]

* Peter Hodur <petehodur at gmail.com> 2015.01.29 05:25:

> > With a current version of Dovecot a search is pretty fast _without_ using
> > external indexes. I have a view defined (virtual plugin) with around 22.000
> > messages in it, and searching the full view only takes 2.5 seconds:
> >
> >
> hmmm, could you please tell me more about your setup? What storage format
> do you use? Maildir or? What is the cumulative size of your messages?


Although the question was not formatted/quoted correctly I guess it is more towards myself as it explicitely speaks of a non-FTS setup:

$ dmesg | grep smpboot
[    0.000000] smpboot: Allowing 64 CPUs, 56 hotplug CPUs
[    0.148600] smpboot: CPU0: Intel(R) Xeon(R) CPU E3-1230 v3 @ 3.30GHz (fam: 06, model: 3c, stepping: 03)
[    0.300030] smpboot: Total of 8 processors activated (52677.72 BogoMIPS)

The volume providing the mail root is using ext4 on an MD mirror (with CRYPT and LVM overhead):


$ lsblk
[...]
└─sda3                        8:3    0   ...  0 part
  └─md2                       9:2    0   ...  0 raid1
    └─crypt1 (dm-0)         253:0    0   ...  0 crypt
      └─vg0-vmail (dm-11)   253:11   0   ...  0 lvm   /var/vmail

$ doveconf -n | head -3
# 2.2.15 (7557234ac0f4): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.6
# OS: Linux 3.16.0-0.bpo.4-amd64 x86_64 Debian 7.8

I'm using unspectacular 7,200rpm SATA drives and mdbox.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 198 bytes
Desc: Digital signature
URL: <http://dovecot.org/pipermail/dovecot/attachments/20150129/14268a47/attachment.sig>