jk2625 opened a new issue #2058:
URL: https://github.com/apache/incubator-pagespeed-mod/issues/2058


   We're seeing issues (across multiple websites with different content) with 
ModPagespeed v1.13.35.2-0 on Apache/2.4.6 causing significant TTFB delays 
(~600-700ms in total) on websites with somewhat larger HTML content (> 100kb or 
so).
   
   This only happens when:
   1. ModPagespeed is turned on (disabling via ?ModPagespeed=off fixes this)
   2. Brotli compression via mod_brotli is on and compressing the HTML 
   
   Normal TTFB is roughly 100-200ms in total.
   
   This happens regardless of what filters are enabled - setting it to pass 
through and/or disabling all active filters still causes the same delay. 
   
   ModPagespeedHttpCacheCompressionLevel 0 has been tried too.
   
   /var/cache/mod_pagespeed/v3 is currently 93M, 
   /var/cache/mod_pagespeed/shm_metadata_cache is currently 5.3M
   
   Both are local filesystems - not using Memcache.
   
   Relevant configuration directives:
   ModPagespeedRewriteDeadlinePerFlushMs 10
   ModPagespeedCreateSharedMemoryMetadataCache ~51M
   ModPagespeedFileCacheSizeKb          102400
   ModPagespeedFileCacheCleanIntervalMs 3600000
   ModPagespeedLRUCacheKbPerProcess     1024
   ModPagespeedLRUCacheByteLimit        16384
   
   With debug: https://pastebin.com/EPBFa9hj
   
   #NumFlushes            0
   #EndDocument after     26133us
   #Total Parse duration  5849us
   #Total Render duration 1330us
   #Total Idle duration   20284us
   The following filters were disabled for this request:
        SupportNoscript
   
   No pagespeed errors in /var/log/httpd/error_log
   Happens on both PHP & static HTML files
   Kernel: 3.10.0-1160.11.1.el7.x86_64
   CentOS 7
   


----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
us...@infra.apache.org


Reply via email to