diff options
Diffstat (limited to 'src/test/old/test_disk_bw.cc')
-rw-r--r-- | src/test/old/test_disk_bw.cc | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/test/old/test_disk_bw.cc b/src/test/old/test_disk_bw.cc new file mode 100644 index 000000000..d509a510d --- /dev/null +++ b/src/test/old/test_disk_bw.cc @@ -0,0 +1,62 @@ + +#include <sys/time.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <errno.h> +#include <sys/uio.h> + +#include "common/Clock.h" +#include "common/safe_io.h" + +#include <iostream> +using namespace std; + +int main(int argc, char **argv) +{ + void *buf; + int fd, count, loop = 0; + + if (argc != 4) { + fprintf(stderr, "Usage: %s device bsize count\n", argv[0]); + exit (0); + } + + int bsize = atoi(argv[2]); + count = atoi(argv[3]); + + posix_memalign(&buf, sysconf(_SC_PAGESIZE), bsize); + + //if ((fd = open(argv[1], O_SYNC|O_RDWR)) < 0) { + if ((fd = open(argv[1], O_DIRECT|O_RDWR)) < 0) { + + fprintf(stderr, "Can't open device %s\n", argv[1]); + exit (4); + } + + + utime_t start = ceph_clock_now(); + while (loop++ < count) { + int ret = safe_write(fd, buf, bsize); + if (ret) + ceph_abort(); + //if ((loop % 100) == 0) + //fprintf(stderr, "."); + } + ::fsync(fd); + ::close(fd); + utime_t end = ceph_clock_now(); + end -= start; + + + char hostname[80]; + gethostname(hostname, 80); + + double mb = bsize*count/1024/1024; + + cout << hostname << "\t" << mb << " MB\t" << end << " seconds\t" << (mb / (double)end) << " MB/sec" << std::endl; +} |