[Dovecot] Errors running imaptest with dovecot-1.1.1

[Joseba Torre]

Just if someone is interested, here are initial results.

Common settings: RHEL4, dual Intel(R) Xeon(TM) CPU 2.40GHz, 2GB RAM. NFS 
mounted homes (using EMC celerra), local index files, NFS mounted control 
files. Authentication uses PAM and local files. FS quota enabled.

(dovecot -n output added at the bottom)

- dovecot v1.0.13 compiled with --with-ldap, RHEL4. Command run
$ imaptest user="imaptest%03d" pass=paquitoelchocolatero mbox=dovecot.mbox 
clients=50 seed=321 sort=100 secs=100 2> /dev/null

Totals:
Logi List Stat Sele Fetc Fet2 Sort Stor Dele Expu Appe Logo
100%  50%  50% 100% 100% 100% 100%  50% 100% 100% 100% 100%
                          30%                       5%
2412 1183 1239 2408 2393 3382 2392  362 1888 2392 2396 4878

- dovecot 1.1.1 compiled with --with-ldap, RHEL4. Same conf file with 
mail_nfs_storage = yes added. Command run:

Totals:
Logi List Stat Sele Fetc Fet2 Sort Stor Dele Expu Appe Logo
100%  50%  50% 100% 100% 100% 100%  50% 100% 100% 100% 100%
                          30%                       5%
2684 1387 1331 2663 2636 3764 2636  397 2079 2636 2655 5386

So it's something like a 10-15% improvement. 
Tomorrow i'll repeat this tests and record cpu load. Is  there anything else I 
should try?

# /usr/local/sbin/dovecot -n
# 1.1.1: /usr/local/etc/dovecot.conf
syslog_facility: local1
protocols: imap imaps pop3 pop3s
listen(default): *:143
listen(imap): *:143
listen(pop3): *:110
ssl_listen(default): *:993
ssl_listen(imap): *:993
ssl_listen(pop3): *:995
ssl_cert_file: /usr/share/ssl/certs/dovecot-beta.pem
ssl_key_file: /usr/share/ssl/certs/dovecot-beta.pem
disable_plaintext_auth: no
login_dir: /usr/local/var/run/dovecot/login
login_executable(default): /usr/local/libexec/dovecot/imap-login
login_executable(imap): /usr/local/libexec/dovecot/imap-login
login_executable(pop3): /usr/local/libexec/dovecot/pop3-login
mail_location: 
maildir:~/Maildir:INDEX=/var/dovecot/%u:CONTROL=/var/dovecot-nas/%u/control
mmap_disable: yes
mail_nfs_storage: yes
mail_executable(default): /usr/local/libexec/dovecot/imap
mail_executable(imap): /usr/local/libexec/dovecot/imap
mail_executable(pop3): /usr/local/libexec/dovecot/pop3
mail_plugins(default): quota imap_quota
mail_plugins(imap): quota imap_quota
mail_plugins(pop3): quota
mail_plugin_dir(default): /usr/local/lib/dovecot/imap
mail_plugin_dir(imap): /usr/local/lib/dovecot/imap
mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3
pop3_uidl_format(default): %08Xu%08Xv
pop3_uidl_format(imap): %08Xu%08Xv
pop3_uidl_format(pop3): %v.%u
auth default:
  master_user_separator: *
  passdb:
    driver: pam
  passdb:
    driver: passwd-file
    args: /usr/local/etc/dovecot-master.conf
    master: yes
  userdb:
    driver: passwd
  socket:
    type: listen
    master:
      path: /var/run/dovecot/auth-master
      mode: 384
plugin:
  quota: fs
-- 
Joseba Torre. CIDIR Bizkaia.
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