Print burst stats
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06823a6e69
@ -551,26 +551,35 @@ pre_affinity(struct ovni_emu *emu)
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static void
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pre_burst(struct ovni_emu *emu)
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{
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struct ovni_ethread *th;
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int64_t dt = 0;
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UNUSED(dt);
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th = emu->cur_thread;
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struct ovni_ethread *th = emu->cur_thread;
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if (th->nbursts >= MAX_BURSTS) {
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err("too many bursts: ignored\n");
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return;
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}
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th->burst_time[th->nbursts] = emu->delta_time;
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if (th->nbursts > 0) {
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dt = th->burst_time[th->nbursts] - th->burst_time[th->nbursts - 1];
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dbg("burst delta time %ld ns\n", dt);
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th->burst_time[th->nbursts++] = emu->delta_time;
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if (th->nbursts == MAX_BURSTS) {
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double avg = 0.0;
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double maxdelta = 0;
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for (int i = 1; i < th->nbursts; i++) {
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double delta = th->burst_time[i] - th->burst_time[i - 1];
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if (delta > maxdelta)
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maxdelta = delta;
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avg += delta;
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}
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th->nbursts++;
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avg /= (double) th->nbursts;
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err("burst avg %.1f ns, max %.0f ns\n",
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MAX_BURSTS, avg, maxdelta);
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th->nbursts = 0;
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}
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}
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static void
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