performance
14 articles tagged performance
7 min
Enable Nginx reverse-proxy caching on cPanel with EA-Nginx
Put cPanel's built-in EA-Nginx in front of Apache as a caching reverse proxy — install it from WHM, control per-user caching, and clear the cache without breaking logged-in WordPress users.
2026-06-16
5 min
Reduce Imunify360 high CPU and RAM usage on cPanel
Isolate which Imunify360 component is eating load — scanner, real-time watcher, Proactive Defense, or WebShield — then tune MALWARE_SCAN_INTENSITY and disable the right pieces.
2026-06-02
8 min
Configure the LiteSpeed crawler to pre-warm LSCache
Pre-warm LSCache with the LSCWP crawler so the first visitor hits a cached page — covers the server-side allow flag, per-site sitemap config, LVE limits, and the four failures that quietly stop the crawler.
2026-05-20
8 min
Set up Redis object cache for WordPress on cPanel
Install Redis on a cPanel server, enable phpredis for every selectable PHP version, and wire WordPress accounts to a shared Redis instance with per-account key isolation.
2026-05-18
7 min
R1Soft throttling: limit backup bandwidth, disk I/O, and CPU
How to throttle R1Soft policies so backups stop saturating MySQL, disk I/O, and uplinks — schedule windows, bandwidth caps, disk read limits, and agent-side niceness.
2026-05-18
9 min
R1Soft concurrent tasks and policy stagger for backup fleets
How to set R1Soft's Maximum Concurrent Tasks, stagger policy start times across a hosting fleet, and stop the 02:00 thundering herd from pinning your SBM disk and Tomcat heap.
2026-05-18
9 min
PHP handlers in Plesk: FPM by nginx, FPM by Apache, FastCGI, and CGI
Plesk gives you five PHP handlers per domain — and the choice between nginx-only FPM and Apache-fronted FPM is the one most admins get wrong. Here is the trade-off, with memory math and recommendations.
2026-05-18
9 min
Tune Apache MPM on cPanel: event, prefork, and worker
Pick the right Apache MPM on cPanel and EasyApache 4 — when event beats prefork, the MaxRequestWorkers math, and the KeepAlive trap that wastes half your worker pool.
2026-05-17
8 min
Tune PHP-FPM pools on cPanel — sizing pm.max_children
Size PHP-FPM pools per cPanel account without overcommitting RAM — pm.max_children math, dynamic vs ondemand vs static, and the failures that show up at 1 a.m.
2026-05-16
11 min
PHP handlers in cPanel: LSAPI vs PHP-FPM vs suPHP
Which PHP handler should you run on a cPanel server in 2026? A side-by-side look at LSAPI, PHP-FPM, suPHP, and FCGI — memory cost, throughput, and where each one breaks.
2026-05-16
8 min
Enable HTTP/3 and QUIC on LiteSpeed Enterprise for cPanel
Turn on HTTP/3 and QUIC for LiteSpeed Enterprise on a cPanel server — UDP 443, firewall rules, Cloudflare passthrough, and a 30-second check that it actually serves.
2026-05-16
7 min
CloudLinux X-Ray: profile slow PHP code in production
Enable X-Ray on a CloudLinux server to capture stack traces from slow PHP requests, identify hot functions and queries, and fix performance issues before customers churn.
2026-05-16
7 min
Set up CloudLinux AccelerateWP on a cPanel hosting server
Ship one-click WordPress acceleration to every cPanel user. Install AccelerateWP, configure the object cache, set feature policies, and avoid the conflicts that break existing caching plugins.
2026-05-16
8 min
CloudLinux LVE tuning without angry customers
How to set LVE limits that keep a shared cPanel server stable under load — without flooding support with 508 errors and slow-loading WordPress sites.
2026-05-15