On Mon, Jan 16, 2023 at 1:34 PM manmatha manmatha@isical.ac.in wrote:
Hi All,
We are running Round cube on top of dovecot and postfix as our email echo system. Main problem we are facing is that, roundcube loads really slow for big inboxes (~5000 emails). I found that, while it loads, imap process goes high in terms of CPU utilization(~90%). I asked it in some roundcube support group, They believe that it is related to dovecot not roundcube. Can you shed any light on this issue. Thanks in advance.
Here is $dovecot -n$ output
xyz@roundcube-internal-server-1:
/etc/dovecot$ dovecot -n # 2.3.16 (7e2e900c1a): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.16 (09c29328) # OS: Linux 5.15.0-1024-kvm x86_64 Ubuntu 22.04.1 LTS # Hostname: roundcube-internal-server-1 auth_mechanisms = plain login disable_plaintext_auth = no listen = * lock_method = dotlock mail_always_cache_fields = date.received mail_cache_min_mail_count = 5000 mail_location = mbox:~/mail:INBOX=/var/mail/%u:INDEX=/var/indexes/ isical.ac.in/%n
Yes. Please migrate from mbox to Maildir++ and you will not suffer from those lock issues.
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