From db600696d19bb2e89f1bb57c38dd7b0c8283f0ea Mon Sep 17 00:00:00 2001 From: Moe Jette <jette1@llnl.gov> Date: Fri, 4 Jun 2010 20:21:30 +0000 Subject: [PATCH] tweak htc admin guide --- doc/html/high_throughput.shtml | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/doc/html/high_throughput.shtml b/doc/html/high_throughput.shtml index e538187c10a..e19c216f419 100644 --- a/doc/html/high_throughput.shtml +++ b/doc/html/high_throughput.shtml @@ -17,11 +17,15 @@ sustained basis (about 9 jobs per second).</p> <h2>System configuration</h2> <p>Three system configuration parameters must be set to support a large number -of open files and TCP connections with large bursts of messages.</p> +of open files and TCP connections with large bursts of messages. Changes can +be made using the <b>/etc/rc.d/rc.local</b> or <b>/etc/sysctl.conf</b> +script to preserve changes after reboot. In either case, you can write values +directly into these files +(e.g. <i>"echo 32832 > /proc/sys/fs/file-max"</i>).</p> <ul> <li><b>/proc/sys/fs/file-max</b>: The maximum number of concurrently open files. -We recommend a limit of at least 8,096.</> +We recommend a limit of at least 32,832.</li> <li><b>/proc/sys/net/ipv4/tcp_max_syn_backlog</b>: Maximum number of remembered connection requests, which are still did not receive an acknowledgment from connecting client. -- GitLab