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-rw-r--r--progs/perf/common.c137
1 files changed, 0 insertions, 137 deletions
diff --git a/progs/perf/common.c b/progs/perf/common.c
deleted file mode 100644
index b6489ef918..0000000000
--- a/progs/perf/common.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * VMWARE BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/**
- * Common perf code. This should be re-usable with other APIs.
- */
-
-#include "common.h"
-#include "glmain.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-
-#if defined(_MSC_VER)
-#define snprintf _snprintf
-#endif
-
-
-/* Need to add a fflush windows console with mingw, otherwise nothing
- * shows up until program exit. May want to add logging here.
- */
-void
-perf_printf(const char *format, ...)
-{
- va_list ap;
- va_start(ap, format);
-
- fflush(stdout);
- vfprintf(stdout, format, ap);
- fflush(stdout);
-
- va_end(ap);
-}
-
-
-
-/**
- * Run function 'f' for enough iterations to reach a steady state.
- * Return the rate (iterations/second).
- */
-double
-PerfMeasureRate(PerfRateFunc f)
-{
- const double minDuration = 1.0;
- double rate = 0.0, prevRate = 0.0;
- unsigned subiters;
-
- /* Compute initial number of iterations to try.
- * If the test function is pretty slow this helps to avoid
- * extraordarily long run times.
- */
- subiters = 2;
- {
- const double t0 = PerfGetTime();
- double t1;
- do {
- f(subiters); /* call the rendering function */
- t1 = PerfGetTime();
- subiters *= 2;
- } while (t1 - t0 < 0.1 * minDuration);
- }
- /*perf_printf("initial subIters = %u\n", subiters);*/
-
- while (1) {
- const double t0 = PerfGetTime();
- unsigned iters = 0;
- double t1;
-
- do {
- f(subiters); /* call the rendering function */
- t1 = PerfGetTime();
- iters += subiters;
- } while (t1 - t0 < minDuration);
-
- rate = iters / (t1 - t0);
-
- if (0)
- perf_printf("prevRate %f rate %f ratio %f iters %u\n",
- prevRate, rate, rate/prevRate, iters);
-
- /* Try and speed the search up by skipping a few steps:
- */
- if (rate > prevRate * 1.6)
- subiters *= 8;
- else if (rate > prevRate * 1.2)
- subiters *= 4;
- else if (rate > prevRate * 1.05)
- subiters *= 2;
- else
- break;
-
- prevRate = rate;
- }
-
- if (0)
- perf_printf("%s returning iters %u rate %f\n", __FUNCTION__, subiters, rate);
- return rate;
-}
-
-
-/* Note static buffer, can only use once per printf.
- */
-const char *
-PerfHumanFloat( double d )
-{
- static char buf[80];
-
- if (d > 1000000000.0)
- snprintf(buf, sizeof(buf), "%.1f billion", d / 1000000000.0);
- else if (d > 1000000.0)
- snprintf(buf, sizeof(buf), "%.1f million", d / 1000000.0);
- else if (d > 1000.0)
- snprintf(buf, sizeof(buf), "%.1f thousand", d / 1000.0);
- else
- snprintf(buf, sizeof(buf), "%.1f", d);
-
- return buf;
-}