diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/vm/page_owner_sort.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/tools/vm/page_owner_sort.c b/tools/vm/page_owner_sort.c index 1b2acf02d3cd..492be7f752c0 100644 --- a/tools/vm/page_owner_sort.c +++ b/tools/vm/page_owner_sort.c @@ -51,6 +51,13 @@ int read_block(char *buf, int buf_size, FILE *fin) return -1; /* EOF or no space left in buf. */ } +static int compare_txt(const void *p1, const void *p2) +{ + const struct block_list *l1 = p1, *l2 = p2; + + return strcmp(l1->txt, l2->txt); +} + static int compare_stacktrace(const void *p1, const void *p2) { const struct block_list *l1 = p1, *l2 = p2; @@ -137,12 +144,14 @@ static void usage(void) "-m Sort by total memory.\n" "-s Sort by the stack trace.\n" "-t Sort by times (default).\n" + "-c cull by comparing stacktrace instead of total block.\n" ); } int main(int argc, char **argv) { int (*cmp)(const void *, const void *) = compare_num; + int cull_st = 0; FILE *fin, *fout; char *buf; int ret, i, count; @@ -151,7 +160,7 @@ int main(int argc, char **argv) int err; int opt; - while ((opt = getopt(argc, argv, "mst")) != -1) + while ((opt = getopt(argc, argv, "mstc")) != -1) switch (opt) { case 'm': cmp = compare_page_num; @@ -162,6 +171,9 @@ int main(int argc, char **argv) case 't': cmp = compare_num; break; + case 'c': + cull_st = 1; + break; default: usage(); exit(1); @@ -209,7 +221,10 @@ int main(int argc, char **argv) printf("sorting ....\n"); - qsort(list, list_size, sizeof(list[0]), compare_stacktrace); + if (cull_st == 1) + qsort(list, list_size, sizeof(list[0]), compare_stacktrace); + else + qsort(list, list_size, sizeof(list[0]), compare_txt); list2 = malloc(sizeof(*list) * list_size); if (!list2) { @@ -219,9 +234,11 @@ int main(int argc, char **argv) printf("culling\n"); + long offset = cull_st ? &list[0].stacktrace - &list[0].txt : 0; + for (i = count = 0; i < list_size; i++) { if (count == 0 || - strcmp(list2[count-1].stacktrace, list[i].stacktrace) != 0) { + strcmp(*(&list2[count-1].txt+offset), *(&list[i].txt+offset)) != 0) { list2[count++] = list[i]; } else { list2[count-1].num += list[i].num; |