freebsd-nq/sys/netgraph
Hartmut Brandt 5dfe609dd1 Add two loader tuneables that allow one to change the maximum number of
queue items that can be allocated by netgraph and the number of free queue
items that are cached on a private list.

Netgraph places an upper limit on the number of queue items it may allocate.
When there is a large number of netgraph messages travelling through the
system (100k/sec and more) there is a high probability, that messages get
queued at the nodes and netgraph runs out of queue items. In this case the data
flow through netgraph gets blocked. The tuneable for the number of free
items lets one trade memory for performance.

The tunables are also available as read-only sysctls.

PR:		kern/47393
Reviewed by:	julian
Approved by:	jake (mentor)
2003-03-02 18:04:10 +00:00
..
bluetooth Introduce a new taskqueue that runs completely free of Giant, and in 2003-02-26 03:15:42 +00:00
netgraph.h Don't use "NULL" when "0" is really meant. 2002-08-22 00:30:03 +00:00
ng_async.c Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_async.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_base.c Add two loader tuneables that allow one to change the maximum number of 2003-03-02 18:04:10 +00:00
ng_bpf.c Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_bpf.h Declare a variable sized array within a structure using [] rather than [0] 2002-06-01 20:40:05 +00:00
ng_bridge.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_bridge.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_cisco.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_cisco.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_device.c Catch more uses of MIN(). 2003-02-02 13:30:00 +00:00
ng_device.h A node that creates a device entry in /dev (yay devfs) 2002-06-18 21:32:33 +00:00
ng_echo.c
ng_echo.h
ng_eiface.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_eiface.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_etf.c Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_etf.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_ether.c SMP locking for ifnet list. 2002-12-22 05:35:03 +00:00
ng_ether.h
ng_fec.c Some more updates for the new world order: 2003-02-26 19:49:32 +00:00
ng_fec.h Finally get around to committing Bill Paul's FEC netgraph nodes. 2002-10-29 19:12:44 +00:00
ng_frame_relay.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_frame_relay.h
ng_gif_demux.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_gif_demux.h The initial commit contained an error in the license, this is the 2001-09-27 00:04:29 +00:00
ng_gif.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_gif.h Fixed pedantic syntax error (trailing semicolon in enum). 2001-10-04 07:51:42 +00:00
ng_hole.c
ng_hole.h
ng_iface.c o track changes to ethernet input packet handling 2002-11-14 23:44:37 +00:00
ng_iface.h
ng_ip_input.c Add ng_ip_input. A new netgraph node for queuing IP packets into the 2001-09-27 21:54:27 +00:00
ng_ip_input.h Add ng_ip_input. A new netgraph node for queuing IP packets into the 2001-09-27 21:54:27 +00:00
ng_ksocket.c Reference the socket we're accepting. 2002-09-14 08:56:10 +00:00
ng_ksocket.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_l2tp.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_l2tp.h New L2TP netgraph node type. 2002-08-20 21:59:50 +00:00
ng_lmi.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_lmi.h
ng_message.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_mppc.c Take the rc4 code out of ng_mppc module so we don't fail to load when 2003-02-05 19:11:11 +00:00
ng_mppc.h Add support for 56 bit MPPE encryption. 2001-12-15 02:07:32 +00:00
ng_one2many.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_one2many.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_parse.c Use intptr_t to fix various sizeof(int) != sizeof(void *) warnings. 2002-11-08 21:13:18 +00:00
ng_parse.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_ppp.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_ppp.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_pppoe.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_pppoe.h use __packed. 2002-09-23 18:54:32 +00:00
ng_pptpgre.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_pptpgre.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_rfc1490.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_rfc1490.h
ng_sample.c Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_sample.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_socket.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_socket.h
ng_socketvar.h
ng_source.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_source.h Add the netgraph 'source' module. 2002-10-31 23:03:09 +00:00
ng_split.c Update to C99, s/__FUNCTION__/__func__/, 2001-12-10 08:09:49 +00:00
ng_split.h
ng_tee.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_tee.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
ng_tty.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_tty.h
ng_UI.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_UI.h
ng_vjc.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ng_vjc.h Fix GCC warnings caused by initializing a zero length array. In the process, 2002-05-31 23:48:03 +00:00
NOTES