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Subjectquestion wrt context switching during disk i/o
Hi,

This is something that has been bugging me for a while. I notice
on my system that during disk write we do much context switching,
but not during disk read. Why is that?

procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
0 1 1 0 1940 588 113672 0 0 0 3526 216 3707 0 14 86
0 1 1 0 1940 588 113672 0 0 0 3567 218 3722 0 15 85
0 1 1 0 1940 588 113672 0 0 0 3567 216 3711 0 18 82
0 1 1 0 1940 588 113672 0 0 0 3412 213 3712 0 15 85
1 1 1 0 1940 588 113672 0 0 0 3628 218 3669 0 13 87
0 1 1 0 1460 588 114152 0 0 0 3505 215 3744 0 17 83
1 0 1 0 1460 588 114148 0 0 2417 310 262 680 0 6 94
1 0 1 0 1460 588 114148 0 0 3520 31 324 620 0 16 84
2 0 1 0 1460 588 114148 0 0 3488 31 321 623 0 10 90
1 0 1 0 1460 588 114148 0 0 3168 310 307 590 0 18 82
1 0 1 0 1460 588 114148 0 0 3584 0 327 626 0 12 88
1 0 1 0 1460 588 114148 0 0 3520 62 322 612 0 12 88
1 0 1 0 1460 588 114148 0 0 3488 31 320 675 0 15 85

-Mike

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