o5r/plan9port
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small bug fixes

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This commit is contained in:
rsc 2004-04-23 17:47:02 +00:00
parent e18c134050
commit 272fd660b4
2 changed files with 28 additions and 8 deletions
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8
src/cmd/auxstats/main.c
View file

@ -19,7 +19,7 @@ notifyf(void *v, char *msg)
{
USED(v);
if(strcmp(msg, "child") == 0)
if(strstr(msg, "child"))
noted(NCONT);
postnote(PNPROC, pid, msg);
exits(nil);
@ -57,14 +57,14 @@ main(int argc, char **argv)
sysfatal("fork: %r");
case 0:
rfork(RFNOTEG);
execlp("ssh", "ssh", "-C", sys, exe, nil);
_exit(12);
execlp("ssh", "ssh", "-nTC", sys, exe, nil);
_exit(97);
default:
if((w = wait()) == nil)
sysfatal("wait: %r");
if(w->pid != pid)
sysfatal("wait got wrong pid");
if(atoi(w->msg) == 12)
if(atoi(w->msg) == 97)
sysfatal("exec ssh failed");
free(w);
fprint(2, "stats: %s hung up; sleeping 60\n", sys);

28
src/cmd/draw/stats.c
View file

@ -78,7 +78,7 @@ struct Graph
int ndata;
char *label;
int value;
void (*update)(Graph*, ulong, ulong);
void (*update)(Graph*, long, ulong);
Machine *mach;
int overflow;
Image *overtmp;
@ -94,6 +94,8 @@ struct Machine
int absolute[Nvalue];
ulong last[Nvalue];
ulong val[Nvalue][2];
ulong load;
ulong nload;
};
char *menu2str[Nvalue+1];
@ -297,11 +299,13 @@ redraw(Graph *g, int vmax)
}
void
update1(Graph *g, ulong v, ulong vmax)
update1(Graph *g, long v, ulong vmax)
{
char buf[32];
int overflow;
if(v < 0)
v = 0;
if(vmax != g->vmax){
g->vmax = vmax;
changedvmax = 1;
@ -423,7 +427,23 @@ newvalue(Machine *m, int i, ulong *v, ulong *vmax)
{
ulong now;
if(m->absolute[i]){
if(m->last[i] == 0)
m->last[i] = m->val[i][0];
if(i == Vload){
/*
* Invert the ewma to obtain the 5s load statistics.
* Ewma is load' = (1884/2048)*load + (164/2048)*last5s, so we do
* last5s = (load' - (1884/2048)*load) / (164/2048).
*/
if(++m->nload%5 == 0){
now = m->val[i][0];
m->load = (now - (((vlong)m->last[i]*1884)/2048)) * 2048 / 164;
m->last[i] = now;
}
*v = m->load;
*vmax = m->val[i][1];
}else if(m->absolute[i]){
*v = m->val[i][0];
*vmax = m->val[i][1];
}else{
@ -769,7 +789,7 @@ threadmain(int argc, char *argv[])
if(initdraw(nil, nil, "stats") < 0)
sysfatal("initdraw: %r");
colinit();
if((mc = initmouse(nil, nil)) == nil)
if((mc = initmouse(nil, screen)) == nil)
sysfatal("initmouse: %r");
if((kc = initkeyboard(nil)) == nil)
sysfatal("initkeyboard: %r");