diff options
author | 2015-08-28 09:58:54 +0800 | |
---|---|---|
committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/ipxe/src/tests/profile_test.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/tests/profile_test.c')
-rw-r--r-- | qemu/roms/ipxe/src/tests/profile_test.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/tests/profile_test.c b/qemu/roms/ipxe/src/tests/profile_test.c new file mode 100644 index 000000000..9d682bf2b --- /dev/null +++ b/qemu/roms/ipxe/src/tests/profile_test.c @@ -0,0 +1,140 @@ +/* + * Copyright (C) 2014 Michael Brown <mbrown@fensystems.co.uk>. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +/** @file + * + * Profiling self-tests + * + */ + +/* Forcibly enable assertions */ +#undef NDEBUG + +#include <string.h> +#include <assert.h> +#include <ipxe/test.h> +#include <ipxe/profile.h> + +/** A profiling test */ +struct profile_test { + /** Sample values */ + const unsigned long *samples; + /** Number of samples */ + unsigned int count; + /** Expected mean sample value */ + unsigned long mean; + /** Expected standard deviation */ + unsigned long stddev; +}; + +/** Define inline data */ +#define DATA(...) { __VA_ARGS__ } + +/** Define a profiling test */ +#define PROFILE_TEST( name, MEAN, STDDEV, SAMPLES ) \ + static const unsigned long name ## _samples[] = SAMPLES; \ + static struct profile_test name = { \ + .samples = name ## _samples, \ + .count = ( sizeof ( name ## _samples ) / \ + sizeof ( name ## _samples [0] ) ), \ + .mean = MEAN, \ + .stddev = STDDEV, \ + } + +/** Empty data set */ +PROFILE_TEST ( empty, 0, 0, DATA() ); + +/** Single-element data set (zero) */ +PROFILE_TEST ( zero, 0, 0, DATA ( 0 ) ); + +/** Single-element data set (non-zero) */ +PROFILE_TEST ( single, 42, 0, DATA ( 42 ) ); + +/** Multiple identical element data set */ +PROFILE_TEST ( identical, 69, 0, DATA ( 69, 69, 69, 69, 69, 69, 69 ) ); + +/** Small element data set */ +PROFILE_TEST ( small, 5, 2, DATA ( 3, 5, 9, 4, 3, 2, 5, 7 ) ); + +/** Random data set */ +PROFILE_TEST ( random, 70198, 394, + DATA ( 69772, 70068, 70769, 69653, 70663, 71078, 70101, 70341, + 70215, 69600, 70020, 70456, 70421, 69972, 70267, 69999, + 69972 ) ); + +/** Large-valued random data set */ +PROFILE_TEST ( large, 93533894UL, 25538UL, + DATA ( 93510333UL, 93561169UL, 93492361UL, 93528647UL, + 93557566UL, 93503465UL, 93540126UL, 93549020UL, + 93502307UL, 93527320UL, 93537152UL, 93540125UL, + 93550773UL, 93586731UL, 93521312UL ) ); + +/** + * Report a profiling test result + * + * @v test Profiling test + * @v file Test code file + * @v line Test code line + */ +static void profile_okx ( struct profile_test *test, const char *file, + unsigned int line ) { + struct profiler profiler; + unsigned long mean; + unsigned long stddev; + unsigned int i; + + /* Initialise profiler */ + memset ( &profiler, 0, sizeof ( profiler ) ); + + /* Record sample values */ + for ( i = 0 ; i < test->count ; i++ ) + profile_update ( &profiler, test->samples[i] ); + + /* Check resulting statistics */ + mean = profile_mean ( &profiler ); + stddev = profile_stddev ( &profiler ); + DBGC ( test, "PROFILE calculated mean %ld stddev %ld\n", mean, stddev ); + okx ( mean == test->mean, file, line ); + okx ( stddev == test->stddev, file, line ); +} +#define profile_ok( test ) profile_okx ( test, __FILE__, __LINE__ ) + +/** + * Perform profiling self-tests + * + */ +static void profile_test_exec ( void ) { + + /* Perform profiling tests */ + profile_ok ( &empty ); + profile_ok ( &zero ); + profile_ok ( &single ); + profile_ok ( &identical ); + profile_ok ( &small ); + profile_ok ( &random ); + profile_ok ( &large ); +} + +/** Profiling self-test */ +struct self_test profile_test __self_test = { + .name = "profile", + .exec = profile_test_exec, +}; |