blob: ff41cf6af9620bcf0f95264cbd475983c2bfa18e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
#
# Subroutines which derive information from
# ghc garbage collection stats -- %gcstat
#
sub max_residency {
local(%gcstats) = @_;
local($i, $max) = (-1, 0);
if ($gcstats{"collector"} eq "APPEL") {
die "APPEL stats: average residency not possible\n" ;
}
while(++$i < $gcstats{"gc_no"}) {
$max = $gcstats{"live_$i"} > $max ?
$gcstats{"live_$i"} : $max;
}
$max;
}
sub avg_residency {
local(%gcstats) = @_;
local($i, $j, $total);
if ($gcstats{"collector"} eq "APPEL") {
die "APPEL stats: average residency not possible\n" ;
}
if ($gcstats{"gc_no"} == 0) { return(0); };
$i = 0; $j = 0;
$total = $gcstats{"live_$i"} * $gcstats{"mut_user_$i"} / 2;
while(++$i < $gcstats{"gc_no"}) {
$total += ($gcstats{"live_$i"} + $gcstats{"live_$j"})
* $gcstats{"mut_user_$i"} / 2;
$j = $i;
};
$total += $gcstats{"live_$j"} * $gcstats{"mut_user_$i"} / 2;
int($total / $gcstats{"mut_user_total"});
}
1;
|
