diff options
Diffstat (limited to 'tools/vm/page_owner_sort.c')
| -rw-r--r-- | tools/vm/page_owner_sort.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/tools/vm/page_owner_sort.c b/tools/vm/page_owner_sort.c index b8d2867b5b18..e508abd8f665 100644 --- a/tools/vm/page_owner_sort.c +++ b/tools/vm/page_owner_sort.c @@ -24,6 +24,7 @@ struct block_list { char *txt; + char *comm; // task command name char *stacktrace; __u64 ts_nsec; __u64 free_ts_nsec; @@ -37,6 +38,7 @@ struct block_list { static regex_t order_pattern; static regex_t pid_pattern; static regex_t tgid_pattern; +static regex_t comm_pattern; static regex_t ts_nsec_pattern; static regex_t free_ts_nsec_pattern; static struct block_list *list; @@ -102,6 +104,13 @@ static int compare_tgid(const void *p1, const void *p2) return l1->tgid - l2->tgid; } +static int compare_comm(const void *p1, const void *p2) +{ + const struct block_list *l1 = p1, *l2 = p2; + + return strcmp(l1->comm, l2->comm); +} + static int compare_ts(const void *p1, const void *p2) { const struct block_list *l1 = p1, *l2 = p2; @@ -145,6 +154,7 @@ static void check_regcomp(regex_t *pattern, const char *regex) } # define FIELD_BUFF 25 +# define TASK_COMM_LEN 16 static int get_page_num(char *buf) { @@ -233,6 +243,22 @@ static __u64 get_free_ts_nsec(char *buf) return free_ts_nsec; } +static char *get_comm(char *buf) +{ + char *comm_str = malloc(TASK_COMM_LEN); + + memset(comm_str, 0, TASK_COMM_LEN); + + search_pattern(&comm_pattern, comm_str, buf); + errno = 0; + if (errno != 0) { + printf("wrong comm in follow buf:\n%s\n", buf); + return NULL; + } + + return comm_str; +} + static void add_list(char *buf, int len) { if (list_size != 0 && @@ -266,6 +292,7 @@ static void add_list(char *buf, int len) list[list_size].stacktrace++; list[list_size].pid = get_pid(buf); list[list_size].tgid = get_tgid(buf); + list[list_size].comm = get_comm(buf); list[list_size].ts_nsec = get_ts_nsec(buf); list_size++; if (list_size % 1000 == 0) { @@ -284,6 +311,7 @@ static void usage(void) "-t Sort by times (default).\n" "-p Sort by pid.\n" "-P Sort by tgid.\n" + "-n Sort by task command name.\n" "-a Sort by memory allocate time.\n" "-r Sort by memory release time.\n" "-c Cull by comparing stacktrace instead of total block.\n" @@ -300,7 +328,7 @@ int main(int argc, char **argv) struct stat st; int opt; - while ((opt = getopt(argc, argv, "acfmprstP")) != -1) + while ((opt = getopt(argc, argv, "acfmnprstP")) != -1) switch (opt) { case 'a': cmp = compare_ts; @@ -329,6 +357,9 @@ int main(int argc, char **argv) case 'P': cmp = compare_tgid; break; + case 'n': + cmp = compare_comm; + break; default: usage(); exit(1); @@ -350,6 +381,7 @@ int main(int argc, char **argv) check_regcomp(&order_pattern, "order\\s*([0-9]*),"); check_regcomp(&pid_pattern, "pid\\s*([0-9]*),"); check_regcomp(&tgid_pattern, "tgid\\s*([0-9]*) "); + check_regcomp(&comm_pattern, "tgid\\s*[0-9]*\\s*\\((.*)\\),\\s*ts"); check_regcomp(&ts_nsec_pattern, "ts\\s*([0-9]*)\\s*ns,"); check_regcomp(&free_ts_nsec_pattern, "free_ts\\s*([0-9]*)\\s*ns"); fstat(fileno(fin), &st); @@ -408,6 +440,7 @@ int main(int argc, char **argv) regfree(&order_pattern); regfree(&pid_pattern); regfree(&tgid_pattern); + regfree(&comm_pattern); regfree(&ts_nsec_pattern); regfree(&free_ts_nsec_pattern); return 0; |