d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Enable net.isr.enable by default, causing "delivery to completion"

Browse Source 
(direct dispatch) in interrupt threads when the netisr in question
isn't already active.  If a netisr is already active, or direct
dispatch is already in progress, we queue the packet for later
delivery.  Previously, this option was disabled by default.  I have
measured 20%+ performance improvements in IP packet forwarding with
this enabled.

Please report any problems ASAP, especially relating to stack depth or
out-of-order packet processing.

Discussed with:	jlemon, peter
Sponsored by:	DARPA, Network Associates Laboratories
This commit is contained in:
rwatson 2003-10-01 21:31:09 +00:00
parent dff1ad31d5
commit 078443ab99
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/net/netisr.c
View File

@ -108,7 +108,7 @@ static struct isrstat isrstat;
SYSCTL_NODE(_net, OID_AUTO, isr, CTLFLAG_RW, 0, "netisr counters");
static int netisr_enable = 0;
static int netisr_enable = 1;
SYSCTL_INT(_net_isr, OID_AUTO, enable, CTLFLAG_RW,
&netisr_enable, 0, "enable direct dispatch");