diff options
| -rw-r--r-- | Documentation/vm/page_owner.rst | 3 | ||||
| -rw-r--r-- | tools/vm/page_owner_sort.c | 112 |
2 files changed, 99 insertions, 16 deletions
diff --git a/Documentation/vm/page_owner.rst b/Documentation/vm/page_owner.rst index 523bf3419512..25622c715823 100644 --- a/Documentation/vm/page_owner.rst +++ b/Documentation/vm/page_owner.rst @@ -183,6 +183,7 @@ For --sort option: T txt full text of block ft free_ts timestamp of the page when it was released at alloc_ts timestamp of the page when it was allocated + ator allocator memory allocator for pages For --curl option: @@ -192,4 +193,4 @@ For --curl option: n name task command name f free whether the page has been released or not st stacktrace stack trace of the page allocation - + ator allocator memory allocator for pages diff --git a/tools/vm/page_owner_sort.c b/tools/vm/page_owner_sort.c index a32e446e5bb2..fa2e4d2a9d68 100644 --- a/tools/vm/page_owner_sort.c +++ b/tools/vm/page_owner_sort.c @@ -39,6 +39,7 @@ struct block_list { int page_num; pid_t pid; pid_t tgid; + int allocator; }; enum FILTER_BIT { FILTER_UNRELEASE = 1<<1, @@ -51,11 +52,19 @@ enum CULL_BIT { CULL_PID = 1<<2, CULL_TGID = 1<<3, CULL_COMM = 1<<4, - CULL_STACKTRACE = 1<<5 + CULL_STACKTRACE = 1<<5, + CULL_ALLOCATOR = 1<<6 +}; +enum ALLOCATOR_BIT { + ALLOCATOR_CMA = 1<<1, + ALLOCATOR_SLAB = 1<<2, + ALLOCATOR_VMALLOC = 1<<3, + ALLOCATOR_OTHERS = 1<<4 }; enum ARG_TYPE { ARG_TXT, ARG_COMM, ARG_STACKTRACE, ARG_ALLOC_TS, ARG_FREE_TS, - ARG_CULL_TIME, ARG_PAGE_NUM, ARG_PID, ARG_TGID, ARG_UNKNOWN, ARG_FREE + ARG_CULL_TIME, ARG_PAGE_NUM, ARG_PID, ARG_TGID, ARG_UNKNOWN, ARG_FREE, + ARG_ALLOCATOR }; enum SORT_ORDER { SORT_ASC = 1, @@ -89,15 +98,20 @@ static int cull; static int filter; static bool debug_on; -int read_block(char *buf, int buf_size, FILE *fin) +static void set_single_cmp(int (*cmp)(const void *, const void *), int sign); + +int read_block(char *buf, char *ext_buf, int buf_size, FILE *fin) { char *curr = buf, *const buf_end = buf + buf_size; while (buf_end - curr > 1 && fgets(curr, buf_end - curr, fin)) { - if (*curr == '\n') /* empty line */ + if (*curr == '\n') { /* empty line */ return curr - buf; - if (!strncmp(curr, "PFN", 3)) + } + if (!strncmp(curr, "PFN", 3)) { + strcpy(ext_buf, curr); continue; + } curr += strlen(curr); } @@ -146,6 +160,13 @@ static int compare_tgid(const void *p1, const void *p2) return l1->tgid - l2->tgid; } +static int compare_allocator(const void *p1, const void *p2) +{ + const struct block_list *l1 = p1, *l2 = p2; + + return l1->allocator - l2->allocator; +} + static int compare_comm(const void *p1, const void *p2) { const struct block_list *l1 = p1, *l2 = p2; @@ -192,6 +213,8 @@ static int compare_cull_condition(const void *p1, const void *p2) return compare_comm(p1, p2); if ((cull & CULL_UNRELEASE) && compare_release(p1, p2)) return compare_release(p1, p2); + if ((cull & CULL_ALLOCATOR) && compare_allocator(p1, p2)) + return compare_allocator(p1, p2); return 0; } @@ -395,11 +418,42 @@ static int get_arg_type(const char *arg) return ARG_FREE_TS; else if (!strcmp(arg, "alloc_ts") || !strcmp(arg, "at")) return ARG_ALLOC_TS; + else if (!strcmp(arg, "allocator") || !strcmp(arg, "ator")) + return ARG_ALLOCATOR; else { return ARG_UNKNOWN; } } +static int get_allocator(const char *buf, const char *migrate_info) +{ + char *tmp, *first_line, *second_line; + int allocator = 0; + + if (strstr(migrate_info, "CMA")) + allocator |= ALLOCATOR_CMA; + if (strstr(migrate_info, "slab")) + allocator |= ALLOCATOR_SLAB; + tmp = strstr(buf, "__vmalloc_node_range"); + if (tmp) { + second_line = tmp; + while (*tmp != '\n') + tmp--; + tmp--; + while (*tmp != '\n') + tmp--; + first_line = ++tmp; + tmp = strstr(tmp, "alloc_pages"); + if (tmp) { + if (tmp && first_line <= tmp && tmp < second_line) + allocator |= ALLOCATOR_VMALLOC; + } + } + if (allocator == 0) + allocator = ALLOCATOR_OTHERS; + return allocator; +} + static bool match_num_list(int num, int *list, int list_size) { for (int i = 0; i < list_size; ++i) @@ -437,7 +491,7 @@ static bool is_need(char *buf) return true; } -static void add_list(char *buf, int len) +static void add_list(char *buf, int len, char *ext_buf) { if (list_size != 0 && len == list[list_size-1].len && @@ -471,6 +525,7 @@ static void add_list(char *buf, int len) list[list_size].stacktrace++; list[list_size].ts_nsec = get_ts_nsec(buf); list[list_size].free_ts_nsec = get_free_ts_nsec(buf); + list[list_size].allocator = get_allocator(buf, ext_buf); list_size++; if (list_size % 1000 == 0) { printf("loaded %d\r", list_size); @@ -496,12 +551,16 @@ static bool parse_cull_args(const char *arg_str) cull |= CULL_STACKTRACE; else if (arg_type == ARG_FREE) cull |= CULL_UNRELEASE; + else if (arg_type == ARG_ALLOCATOR) + cull |= CULL_ALLOCATOR; else { free_explode(args, size); return false; } } free_explode(args, size); + if (sc.size == 0) + set_single_cmp(compare_num, SORT_DESC); return true; } @@ -556,6 +615,8 @@ static bool parse_sort_args(const char *arg_str) sc.cmps[i] = compare_free_ts; else if (arg_type == ARG_TXT) sc.cmps[i] = compare_txt; + else if (arg_type == ARG_ALLOCATOR) + sc.cmps[i] = compare_allocator; else { free_explode(args, size); sc.size = 0; @@ -588,6 +649,19 @@ static int *parse_nums_list(char *arg_str, int *list_size) return list; } +static void print_allocator(FILE *out, int allocator) +{ + fprintf(out, "allocated by "); + if (allocator & ALLOCATOR_CMA) + fprintf(out, "CMA "); + if (allocator & ALLOCATOR_SLAB) + fprintf(out, "SLAB "); + if (allocator & ALLOCATOR_VMALLOC) + fprintf(out, "VMALLOC "); + if (allocator & ALLOCATOR_OTHERS) + fprintf(out, "OTHERS "); +} + #define BUF_SIZE (128 * 1024) static void usage(void) @@ -614,8 +688,8 @@ static void usage(void) int main(int argc, char **argv) { FILE *fin, *fout; - char *buf; - int ret, i, count; + char *buf, *ext_buf; + int i, count; struct stat st; int opt; struct option longopts[] = { @@ -724,16 +798,18 @@ int main(int argc, char **argv) list = malloc(max_size * sizeof(*list)); buf = malloc(BUF_SIZE); - if (!list || !buf) { + ext_buf = malloc(BUF_SIZE); + if (!list || !buf || !ext_buf) { fprintf(stderr, "Out of memory\n"); exit(1); } for ( ; ; ) { - ret = read_block(buf, BUF_SIZE, fin); - if (ret < 0) + int buf_len = read_block(buf, ext_buf, BUF_SIZE, fin); + + if (buf_len < 0) break; - add_list(buf, ret); + add_list(buf, buf_len, ext_buf); } printf("loaded %d\n", list_size); @@ -757,9 +833,11 @@ int main(int argc, char **argv) qsort(list, count, sizeof(list[0]), compare_sort_condition); for (i = 0; i < count; i++) { - if (cull == 0) - fprintf(fout, "%d times, %d pages:\n%s\n", - list[i].num, list[i].page_num, list[i].txt); + if (cull == 0) { + fprintf(fout, "%d times, %d pages, ", list[i].num, list[i].page_num); + print_allocator(fout, list[i].allocator); + fprintf(fout, ":\n%s\n", list[i].txt); + } else { fprintf(fout, "%d times, %d pages", list[i].num, list[i].page_num); @@ -769,6 +847,10 @@ int main(int argc, char **argv) fprintf(fout, ", TGID %d", list[i].pid); if (cull & CULL_COMM || filter & FILTER_COMM) fprintf(fout, ", task_comm_name: %s", list[i].comm); + if (cull & CULL_ALLOCATOR) { + fprintf(fout, ", "); + print_allocator(fout, list[i].allocator); + } if (cull & CULL_UNRELEASE) fprintf(fout, " (%s)", list[i].free_ts_nsec ? "UNRELEASED" : "RELEASED"); |