ref: ea413b4a62be9993e4b63bf237f0b1d482f4aafa
dir: /sys/src/cmd/5i/stats.c/
#include <u.h> #include <libc.h> #include <bio.h> #include <mach.h> #include "arm.h" #define Percent(num, max) ((max)?((num)*100)/(max):0) #define prof prof5i extern Inst itab[]; Inst *tables[] = { itab, 0 }; void isum(void) { Inst *i; int total, mems, arith, branch; int useddelay, taken, syscall; int pct, j; total = 0; mems = 0; arith = 0; branch = 0; useddelay = 0; taken = 0; syscall = 0; /* Compute the total so we can have percentages */ for(i = itab; i->func; i++) if(i->name && i->count) total += i->count; Bprint(bioout, "\nInstruction summary.\n\n"); for(j = 0; tables[j]; j++) { for(i = tables[j]; i->func; i++) { if(i->name) { /* This is gross */ if(i->count == 0) continue; pct = Percent(i->count, total); if(pct != 0) Bprint(bioout, "%-8ud %3d%% %s\n", i->count, Percent(i->count, total), i->name); else Bprint(bioout, "%-8ud %s\n", i->count, i->name); switch(i->type) { default: fatal(0, "isum bad stype %d\n", i->type); case Imem: mems += i->count; break; case Iarith: arith += i->count; break; case Ibranch: branch += i->count; taken += i->taken; useddelay += i->useddelay; break; case Isyscall: syscall += i->count; break; } } } } Bprint(bioout, "\n%-8ud Memory cycles\n", mems+total); Bprint(bioout, "%-8ud %3d%% Instruction cycles\n", total, Percent(total, mems+total)); Bprint(bioout, "%-8ud %3d%% Data cycles\n\n", mems, Percent(mems, mems+total)); Bprint(bioout, "%-8ud %3d%% Arithmetic\n", arith, Percent(arith, total)); Bprint(bioout, "%-8ud %3d%% System calls\n", syscall, Percent(syscall, total)); Bprint(bioout, "%-8ud %3d%% Branches\n", branch, Percent(branch, total)); Bprint(bioout, " %-8ud %3d%% Branches taken\n", taken, Percent(taken, branch)); Bprint(bioout, " %-8ud %3d%% Delay slots\n", useddelay, Percent(useddelay, branch)); Bprint(bioout, " %-8ud %3d%% Unused delay slots\n", branch-useddelay, Percent(branch-useddelay, branch)); Bprint(bioout, "%-8ud %3d%% Program total delay slots\n", nopcount, Percent(nopcount, total)); } void tlbsum(void) { if(tlb.on == 0) return; Bprint(bioout, "\n\nTlb summary\n"); Bprint(bioout, "\n%-8d User entries\n", tlb.tlbsize); Bprint(bioout, "%-8d Accesses\n", tlb.hit+tlb.miss); Bprint(bioout, "%-8d Tlb hits\n", tlb.hit); Bprint(bioout, "%-8d Tlb misses\n", tlb.miss); Bprint(bioout, "%7d%% Hit rate\n", Percent(tlb.hit, tlb.hit+tlb.miss)); } char *stype[] = { "Stack", "Text", "Data", "Bss" }; void segsum(void) { Segment *s; int i; Bprint(bioout, "\n\nMemory Summary\n\n"); Bprint(bioout, " Base End Resident References\n"); for(i = 0; i < Nseg; i++) { s = &memory.seg[i]; Bprint(bioout, "%-5s %.8lux %.8lux %-8d %-8d\n", stype[i], s->base, s->end, s->rss*BY2PG, s->refs); } } typedef struct Prof Prof; struct Prof { Symbol s; long count; }; Prof prof[5000]; int profcmp(void *va, void *vb) { Prof *a, *b; a = va; b = vb; return b->count - a->count; } void iprofile(void) { Prof *p, *n; int i, b, e; ulong total; extern ulong textbase; i = 0; p = prof; if(textsym(&p->s, i) == 0) return; i++; for(;;) { n = p+1; if(textsym(&n->s, i) == 0) break; b = (p->s.value-textbase)/PROFGRAN; e = (n->s.value-textbase)/PROFGRAN; while(b < e) p->count += iprof[b++]; i++; p = n; } qsort(prof, i, sizeof(Prof), profcmp); total = 0; for(b = 0; b < i; b++) total += prof[b].count; Bprint(bioout, " cycles %% symbol file\n"); for(b = 0; b < i; b++) { if(prof[b].count == 0) continue; Bprint(bioout, "%8ld %3ld.%ld %-15s ", prof[b].count, 100*prof[b].count/total, (1000*prof[b].count/total)%10, prof[b].s.name); printsource(prof[b].s.value); Bputc(bioout, '\n'); } memset(prof, 0, sizeof(Prof)*i); }