performance update

100000 times fork(241):
15.68 1.00 7.93
15.41 1.35 7.78
15.51 1.06 8.08
15.63 1.16 7.95
15.75 1.33 7.85
==============================
重新安裝minix,全部重測
(3.1.2a):
fork:
10.26 real 0.11 user 8.38 sys 33.45 0.43 27.63
10.30 real 0.20 user 8.40 sys 33.40 0.46 27.70
10.28 real 0.13 user 8.53 sys 33.46 0.53 27.66
10.30 real 0.13 user 8.56 sys 33.28 0.75 26.96
10.31 real 0.13 user 8.45 sys 33.28 0.48 27.98
10.30 real 0.15 user 8.28 sys
10.31 real 0.13 user 8.48 sys
matrix:
33.43 real 33.33 user 0.10 sys
33.41 real 33.40 user 0.01 sys
33.66 real 33.60 user 0.06 sys
33.65 real 33.61 user 0.03 sys
(v170 3.1.2ar0):
fork:
11.33 real 0.26 user 8.81 sys 38.46 0.83 31.26
11.31 real 0.21 user 9.00 sys 38.61 0.68 31.21
11.28 real 0.26 user 8.86 sys 38.36 0.68 30.98
11.28 real 0.18 user 9.13 sys 38.40 0.95 31.11
11.31 real 0.16 user 8.98 sys 38.40 0.63 31.56
matrix:
33.58 real 33.55 user 0.03 sys
33.56 real 33.55 user 0.01 sys
33.56 real 33.53 user 0.03 sys
(v182 3.1.2ar1)
fork:
12.73 real 0.45 user 10.36 sys 42.40 1.61 34.31
12.73 real 0.40 user 10.18 sys 42.41 1.31 34.31
12.75 real 0.36 user 10.25 sys 42.45 1.75 34.35
12.75 real 0.40 user 10.33 sys 42.46 1.26 35.40
12.76 real 0.38 user 10.18 sys 42.51 1.13 34.75
matrix
33.35 real 33.35
33.36 33.36
33.41 33.41
(nophys 3.1.2ar2) (nophys 3.1.2ar216)
fork: 100000 times:
4.63 real 0.30 user 2.48 sys
4.65 real 0.30 user 2.30 sys
4.66 real 0.26 user 2.45 sys
4.56 real 0.33 user 2.28 sys
4.65 real 0.30 user 2.06 sys
matrix
33.86 real 33.75 user 0.11 sys
33.86 real 33.81 user 0.05 sys
33.86 real 33.76 user 0.10 sys

==========================================================
今天發現wbinvd跟page內部的cache disable在我的程式中都是不必要的存在><"
拿掉wbinvd(release/3.1.2ar88 ,把大部分copy都交給pg做....)
30000 times fork()
real user sys
4.91 0.36 2.51
5.00 0.40 2.60
4.90 0.25 2.75
4.91 0.38 2.38
4.93 0.25 2.56
matrix
real user sys
33.35 33.18 0.15
33.43 33.36 0.06
33.45 33.40 0.05
33.51 33.26 025

===================================================
30000 times fork
pager+MM server:
1:17.76 5.81 41.81

matrix
36.03 34.03 1.96