Subversion Repositories planix.SVN

#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);
}