diff options
Diffstat (limited to 'tools/testing/selftests/vm/gup_benchmark.c')
| -rw-r--r-- | tools/testing/selftests/vm/gup_benchmark.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/tools/testing/selftests/vm/gup_benchmark.c b/tools/testing/selftests/vm/gup_benchmark.c index 43b4dfe161a2..1d4359341e44 100644 --- a/tools/testing/selftests/vm/gup_benchmark.c +++ b/tools/testing/selftests/vm/gup_benchmark.c @@ -15,12 +15,12 @@ #define PAGE_SIZE sysconf(_SC_PAGESIZE) #define GUP_FAST_BENCHMARK _IOWR('g', 1, struct gup_benchmark) -#define GUP_LONGTERM_BENCHMARK _IOWR('g', 2, struct gup_benchmark) -#define GUP_BENCHMARK _IOWR('g', 3, struct gup_benchmark) +#define GUP_BENCHMARK _IOWR('g', 2, struct gup_benchmark) /* Similar to above, but use FOLL_PIN instead of FOLL_GET. */ -#define PIN_FAST_BENCHMARK _IOWR('g', 4, struct gup_benchmark) -#define PIN_BENCHMARK _IOWR('g', 5, struct gup_benchmark) +#define PIN_FAST_BENCHMARK _IOWR('g', 3, struct gup_benchmark) +#define PIN_BENCHMARK _IOWR('g', 4, struct gup_benchmark) +#define PIN_LONGTERM_BENCHMARK _IOWR('g', 5, struct gup_benchmark) /* Just the flags we need, copied from mm.h: */ #define FOLL_WRITE 0x01 /* check pte is writable */ @@ -52,6 +52,9 @@ int main(int argc, char **argv) case 'b': cmd = PIN_BENCHMARK; break; + case 'L': + cmd = PIN_LONGTERM_BENCHMARK; + break; case 'm': size = atoi(optarg) * MB; break; @@ -67,9 +70,6 @@ int main(int argc, char **argv) case 'T': thp = 0; break; - case 'L': - cmd = GUP_LONGTERM_BENCHMARK; - break; case 'U': cmd = GUP_BENCHMARK; break; @@ -105,12 +105,16 @@ int main(int argc, char **argv) gup.flags |= FOLL_WRITE; fd = open("/sys/kernel/debug/gup_benchmark", O_RDWR); - if (fd == -1) - perror("open"), exit(1); + if (fd == -1) { + perror("open"); + exit(1); + } p = mmap(NULL, size, PROT_READ | PROT_WRITE, flags, filed, 0); - if (p == MAP_FAILED) - perror("mmap"), exit(1); + if (p == MAP_FAILED) { + perror("mmap"); + exit(1); + } gup.addr = (unsigned long)p; if (thp == 1) @@ -123,8 +127,10 @@ int main(int argc, char **argv) for (i = 0; i < repeats; i++) { gup.size = size; - if (ioctl(fd, cmd, &gup)) - perror("ioctl"), exit(1); + if (ioctl(fd, cmd, &gup)) { + perror("ioctl"); + exit(1); + } printf("Time: get:%lld put:%lld us", gup.get_delta_usec, gup.put_delta_usec); |