1. iijppp using 100% CPU even when modem idle?
This one's been driving me nuts for a long time, but as I'm functional
regardless I've been too lazy to ask about it until now...
How normal is it for iijppp to take up 100% of the CPU, even when the
link is totally idle, and thus the kernel is seeing no comm interrupts?
top indicates it is taking about 80% kernel mode and 20% user mode time.
I'm using iijppp under FreeBSD 2.1.0-RELEASE to route a subnet at my house
over to the network at work. I was using a 386sx-25 with a Hayes ESP serial
board, until the ancient 80 meg IDE head crashed, and now am using a 486dx2/66
with a plain 16550 serial board... in either case, at 115200 bps, driving a
28.8K external modem.
Yet someone I know (hi James) has *multiple* 115.2K connections on a 386/40
with FreeBSD and none of the ppp processes use much CPU at all. Our iijppp
config files are about as identical as they can get considering the
differences in our setups. What could I have done wrong? I thought the
whole point of iijppp was to use less kernel time than pppd... :)
Top output (on 486/66 -- it was 116% (!?) on the 386sx):
load averages: 1.09, 1.05, 1.01 22:12:22
38 processes: 2 running, 36 sleeping
Cpu states: 28.6% user, 0.0% nice, 69.9% system, 1.5% interrupt, 0.0% idle
Memory: 7980K Active, 728K Inact, 2532K Wired, 2528K Cache, 536K Free
Swap: 66M Total, 57M Free, 13% Inuse
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
2626 root 105 0 468K 204K run 313.0H 97.31% 97.31% ppp
I'll post my routing table and both kernel config files if it'll help,
but I'll save the bandwidth for now.
-- Programmer/Analyst, webmaster/netnews guy, Wittenberg Univ, Springfield OH
-- http://www.termfrost.org/~mandrews/ "Don't get even, get odd..."
2. A very simple question!!!
3. Idle-Timeout with Telnet and SSH
4. Reading is much more interesting than TV (0097/1708)
5. What controls idle timeout?
6. system crashed and don't have root's password
7. How to disable the idle timeout of my xterm ?
9. user accounting & idle timeout
10. Idle timeout for PPP client
11. overall idle timeout
12. telnet idle timeout
13. Idle Timeout on Production Server