I have a question - Why does the PLIP driver does consume so much CPU ?
I tried it today, and when i did ping -s 16000 dst_ip, the kernel consumed
about 50% of the CPU time ( /proc/cpuinfo and /proc/interrupts follow).
Any ideas ?
shtajga:~# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 3
cpu MHz : 548.545
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 3
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov
pat pse36 psn mmx fxsr xmm
bogomips : 1094.45
shtajga:~# cat /proc/interrupts
CPU0
0: 32765032 XT-PIC timer
1: 227971 XT-PIC keyboard
2: 0 XT-PIC cascade
3: 42658190 XT-PIC serial
4: 518726307 XT-PIC serial
7: 45966 XT-PIC parport0
8: 1 XT-PIC rtc
9: 15292 XT-PIC eth0
10: 21984776 XT-PIC eth1
11: 1534661 XT-PIC sm200
12: 498413 XT-PIC PS/2 Mouse
13: 1 XT-PIC fpu
14: 18221483 XT-PIC ide0
15: 8 XT-PIC ide1
NMI: 0
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