Add sentence on "low memory" limit for tcp_mem on 32-bit systems.

2006-07-05 11:00:47 +00:00 · 2006-07-05 11:00:47 +00:00 · 55014d7af6
parent be482b7d5b
commit 55014d7af6
1 changed files with 4 additions and 0 deletions
--- a/man7/tcp.7
+++ b/man7/tcp.7
@ -334,6 +334,10 @@ This is a vector of 3 integers: [low, pressure, high].  These
 bounds are used by TCP to track its memory usage.  The
 defaults are calculated at boot time from the amount of
 available memory.
+(TCP can only use 
+.I "low memory"
+for this, which is limited to around 900 megabytes on 32-bit systems.
+64-bit systems do not suffer this limitation.)

 .I low 
 - TCP doesn't regulate its memory allocation when the number