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-rw-r--r--vppinfra/vppinfra/test_time.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/vppinfra/vppinfra/test_time.c b/vppinfra/vppinfra/test_time.c
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--- a/vppinfra/vppinfra/test_time.c
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-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/*
- Copyright (c) 2005 Eliot Dresselhaus
-
- 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 THE AUTHORS OR COPYRIGHT HOLDERS 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.
-*/
-
-#include <vppinfra/format.h>
-#include <vppinfra/time.h>
-#include <vppinfra/math.h> /* for sqrt */
-
-static int verbose;
-#define if_verbose(format,args...) \
- if (verbose) { clib_warning(format, ## args); }
-
-static int
-test_time_main (unformat_input_t * input)
-{
- f64 wait, error;
- f64 t, tu[3], ave, rms;
- clib_time_t c;
- int i, n, j;
-
- clib_time_init (&c);
- wait = 1e-3;
- n = 1000;
- unformat (input, "%f %d", &wait, &n);
- ave = rms = 0;
- tu[0] = unix_time_now ();
- tu[1] = unix_time_now ();
- for (i = 0; i < n; i++)
- {
- j = 0;
- t = clib_time_now (&c);
- while (clib_time_now (&c) < t + wait)
- j++;
- t = j;
- ave += t;
- rms += t * t;
- }
- tu[2] = unix_time_now ();
- ave /= n;
- rms = sqrt (rms / n - ave * ave);
-
- error = ((tu[2] - tu[1]) - 2 * (tu[1] - tu[0]) - n * wait) / n;
- if_verbose ("tested %d x %.6e sec waits, error %.6e loops %.6e +- %.6e\n",
- n, wait, error, ave, rms);
-
- return 0;
-}
-
-#ifdef CLIB_UNIX
-int
-main (int argc, char *argv[])
-{
- unformat_input_t i;
- int ret;
-
- verbose = (argc > 1);
- unformat_init_command_line (&i, argv);
- ret = test_time_main (&i);
- unformat_free (&i);
-
- return ret;
-}
-#endif /* CLIB_UNIX */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */