Author: trasz
Date: Wed Jul 4 14:18:12 2018
New Revision: 335955
URL: https://svnweb.freebsd.org/changeset/base/335955
Log:
Add a very simple memcpy benchmark.
Obtained from: CheriBSD
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
Modified:
head/tools/tools/syscall_timing/syscall_timing.c
Modified: head/tools/tools/syscall_timing/syscall_timing.c
==============================================================================
--- head/tools/tools/syscall_timing/syscall_timing.c Wed Jul 4 14:15:48
2018 (r335954)
+++ head/tools/tools/syscall_timing/syscall_timing.c Wed Jul 4 14:18:12
2018 (r335955)
@@ -343,6 +343,26 @@ test_getuid(uintmax_t num, uintmax_t int_arg __unused,
}
static uintmax_t
+test_memcpy(uintmax_t num, uintmax_t int_arg, const char *path __unused)
+{
+ char buf[int_arg], buf2[int_arg];
+ uintmax_t i;
+
+ benchmark_start();
+ BENCHMARK_FOREACH(i, num) {
+ /*
+ * Copy the memory there and back, to match the total amount
+ * moved by pipeping/pipepingtd tests.
+ */
+ memcpy(buf2, buf, int_arg);
+ memcpy(buf, buf2, int_arg);
+ }
+ benchmark_stop();
+
+ return (i);
+}
+
+static uintmax_t
test_open_close(uintmax_t num, uintmax_t int_arg __unused, const char *path)
{
uintmax_t i;
@@ -833,6 +853,13 @@ static const struct test tests[] = {
{ "getresuid", test_getresuid, .t_flags = 0 },
{ "gettimeofday", test_gettimeofday, .t_flags = 0 },
{ "getuid", test_getuid, .t_flags = 0 },
+ { "memcpy_1", test_memcpy, .t_flags = 0, .t_int = 1 },
+ { "memcpy_10", test_memcpy, .t_flags = 0, .t_int = 10 },
+ { "memcpy_100", test_memcpy, .t_flags = 0, .t_int = 100 },
+ { "memcpy_1000", test_memcpy, .t_flags = 0, .t_int = 1000 },
+ { "memcpy_10000", test_memcpy, .t_flags = 0, .t_int = 10000 },
+ { "memcpy_100000", test_memcpy, .t_flags = 0, .t_int = 100000 },
+ { "memcpy_1000000", test_memcpy, .t_flags = 0, .t_int = 1000000 },
{ "open_close", test_open_close, .t_flags = FLAG_PATH },
{ "open_read_close_1", test_open_read_close, .t_flags = FLAG_PATH,
.t_int = 1 },
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