diff options
Diffstat (limited to 'pseudo_profile.c')
-rw-r--r-- | pseudo_profile.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/pseudo_profile.c b/pseudo_profile.c new file mode 100644 index 0000000..c4af803 --- /dev/null +++ b/pseudo_profile.c @@ -0,0 +1,64 @@ +#define _GNU_SOURCE + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <sys/stat.h> + +#include "pseudo.h" + +int +main(int argc, char **argv) { + int fd; + pseudo_profile_t totals = { .total_ops = 0 }, item; + int count = 0; + + if (argc < 2) { + fprintf(stderr, "usage: pseudo_profile <profiling_data>\n"); + exit(1); + } + + fd = open(argv[1], O_RDONLY); + if (fd < 0) { + fprintf(stderr, "Can't open '%s': %s.\n", + argv[1], strerror(errno)); + exit(1); + } + while (read(fd, &item, sizeof(item)) == sizeof(item)) { + if (item.total_ops > 0) { + ++count; + totals.processes += item.processes; + totals.total_ops += item.total_ops; + totals.messages += item.messages; + totals.op_time.tv_sec += item.op_time.tv_sec; + totals.op_time.tv_usec += item.op_time.tv_usec; + if (totals.op_time.tv_usec >= 1000000) { + ++totals.op_time.tv_sec; + totals.op_time.tv_usec -= 1000000; + } + totals.ipc_time.tv_sec += item.ipc_time.tv_sec; + totals.ipc_time.tv_usec += item.ipc_time.tv_usec; + if (totals.ipc_time.tv_usec >= 1000000) { + ++totals.ipc_time.tv_sec; + totals.ipc_time.tv_usec -= 1000000; + } + totals.wrapper_time.tv_sec += item.wrapper_time.tv_sec; + totals.wrapper_time.tv_usec += item.wrapper_time.tv_usec; + if (totals.wrapper_time.tv_usec >= 1000000) { + ++totals.wrapper_time.tv_sec; + totals.wrapper_time.tv_usec -= 1000000; + } + } + } + printf("Found data for %d PIDs, %d processes.\n", + count, totals.processes); + printf("%lld messages for %lld ops.\n", totals.messages, totals.total_ops); + double otime = totals.op_time.tv_sec + (totals.op_time.tv_usec / 1000000.0); + double itime = totals.ipc_time.tv_sec + (totals.ipc_time.tv_usec / 1000000.0); + double wtime = totals.wrapper_time.tv_sec + (totals.wrapper_time.tv_usec / 1000000.0); + printf("%.4f msec wrapper time, %.4f msec op time, %.4f msec IPC time.\n", + wtime * 1000, otime * 1000, itime * 1000); + + return 0; +} |