diff options
Diffstat (limited to 'src/cmd/draw/stats.c')
| -rw-r--r-- | src/cmd/draw/stats.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/src/cmd/draw/stats.c b/src/cmd/draw/stats.c index d411c1eb..f49f541c 100644 --- a/src/cmd/draw/stats.c +++ b/src/cmd/draw/stats.c @@ -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"); |