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-rw-r--r--Documentation/vm/page_owner.rst5
-rw-r--r--tools/vm/page_owner_sort.c120
2 files changed, 98 insertions, 27 deletions
diff --git a/Documentation/vm/page_owner.rst b/Documentation/vm/page_owner.rst
index d658436a5e09..3dd31fe06c05 100644
--- a/Documentation/vm/page_owner.rst
+++ b/Documentation/vm/page_owner.rst
@@ -129,3 +129,8 @@ Usage
Filter:
-f Filter out the information of blocks whose memory has been released.
+
+ Select:
+ --pid <PID> Select by pid.
+ --tgid <TGID> Select by tgid.
+ --name <command> Select by task command name.
diff --git a/tools/vm/page_owner_sort.c b/tools/vm/page_owner_sort.c
index e508abd8f665..e873eff84462 100644
--- a/tools/vm/page_owner_sort.c
+++ b/tools/vm/page_owner_sort.c
@@ -21,6 +21,12 @@
#include <regex.h>
#include <errno.h>
#include <linux/types.h>
+#include <getopt.h>
+
+#define bool int
+#define true 1
+#define false 0
+#define TASK_COMM_LEN 16
struct block_list {
char *txt;
@@ -34,7 +40,18 @@ struct block_list {
pid_t pid;
pid_t tgid;
};
-
+enum FILTER_BIT {
+ FILTER_UNRELEASE = 1<<1,
+ FILTER_PID = 1<<2,
+ FILTER_TGID = 1<<3,
+ FILTER_TASK_COMM_NAME = 1<<4
+};
+struct filter_condition {
+ pid_t tgid;
+ pid_t pid;
+ char comm[TASK_COMM_LEN];
+};
+static struct filter_condition fc;
static regex_t order_pattern;
static regex_t pid_pattern;
static regex_t tgid_pattern;
@@ -154,7 +171,6 @@ 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)
{
@@ -259,11 +275,30 @@ static char *get_comm(char *buf)
return comm_str;
}
+static bool is_need(char *buf)
+{
+ if ((filter & FILTER_UNRELEASE) != 0 && get_free_ts_nsec(buf) != 0)
+ return false;
+ if ((filter & FILTER_PID) != 0 && get_pid(buf) != fc.pid)
+ return false;
+ if ((filter & FILTER_TGID) != 0 && get_tgid(buf) != fc.tgid)
+ return false;
+
+ char *comm = get_comm(buf);
+
+ if ((filter & FILTER_TASK_COMM_NAME) != 0 &&
+ strncmp(comm, fc.comm, TASK_COMM_LEN) != 0) {
+ free(comm);
+ return false;
+ }
+ return true;
+}
+
static void add_list(char *buf, int len)
{
if (list_size != 0 &&
- len == list[list_size-1].len &&
- memcmp(buf, list[list_size-1].txt, len) == 0) {
+ len == list[list_size-1].len &&
+ memcmp(buf, list[list_size-1].txt, len) == 0) {
list[list_size-1].num++;
list[list_size-1].page_num += get_page_num(buf);
return;
@@ -272,28 +307,27 @@ static void add_list(char *buf, int len)
printf("max_size too small??\n");
exit(1);
}
-
- list[list_size].free_ts_nsec = get_free_ts_nsec(buf);
- if (filter == 1 && list[list_size].free_ts_nsec != 0)
+ if (!is_need(buf))
return;
+ list[list_size].pid = get_pid(buf);
+ list[list_size].tgid = get_tgid(buf);
+ list[list_size].comm = get_comm(buf);
list[list_size].txt = malloc(len+1);
if (!list[list_size].txt) {
printf("Out of memory\n");
exit(1);
}
-
+ memcpy(list[list_size].txt, buf, len);
+ list[list_size].txt[len] = 0;
list[list_size].len = len;
list[list_size].num = 1;
list[list_size].page_num = get_page_num(buf);
- memcpy(list[list_size].txt, buf, len);
- list[list_size].txt[len] = 0;
+
list[list_size].stacktrace = strchr(list[list_size].txt, '\n') ?: "";
if (*list[list_size].stacktrace == '\n')
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[list_size].free_ts_nsec = get_free_ts_nsec(buf);
list_size++;
if (list_size % 1000 == 0) {
printf("loaded %d\r", list_size);
@@ -306,16 +340,19 @@ static void add_list(char *buf, int len)
static void usage(void)
{
printf("Usage: ./page_owner_sort [OPTIONS] <input> <output>\n"
- "-m Sort by total memory.\n"
- "-s Sort by the stack trace.\n"
- "-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"
- "-f Filter out the information of blocks whose memory has been released.\n"
+ "-m\t\tSort by total memory.\n"
+ "-s\t\tSort by the stack trace.\n"
+ "-t\t\tSort by times (default).\n"
+ "-p\t\tSort by pid.\n"
+ "-P\t\tSort by tgid.\n"
+ "-n\t\tSort by task command name.\n"
+ "-a\t\tSort by memory allocate time.\n"
+ "-r\t\tSort by memory release time.\n"
+ "-c\t\tCull by comparing stacktrace instead of total block.\n"
+ "-f\t\tFilter out the information of blocks whose memory has been released.\n"
+ "--pid <PID>\tSelect by pid. This selects the information of blocks whose process ID number equals to <PID>.\n"
+ "--tgid <TGID>\tSelect by tgid. This selects the information of blocks whose Thread Group ID number equals to <TGID>.\n"
+ "--name <command>\n\t\tSelect by command name. This selects the information of blocks whose command name identical to <command>.\n"
);
}
@@ -323,12 +360,18 @@ int main(int argc, char **argv)
{
int (*cmp)(const void *, const void *) = compare_num;
FILE *fin, *fout;
- char *buf;
+ char *buf, *endptr;
int ret, i, count;
struct stat st;
int opt;
-
- while ((opt = getopt(argc, argv, "acfmnprstP")) != -1)
+ struct option longopts[] = {
+ { "pid", required_argument, NULL, 1 },
+ { "tgid", required_argument, NULL, 2 },
+ { "name", required_argument, NULL, 3 },
+ { 0, 0, 0, 0},
+ };
+
+ while ((opt = getopt_long(argc, argv, "acfmnprstP", longopts, NULL)) != -1)
switch (opt) {
case 'a':
cmp = compare_ts;
@@ -337,7 +380,7 @@ int main(int argc, char **argv)
cull_st = 1;
break;
case 'f':
- filter = 1;
+ filter = filter | FILTER_UNRELEASE;
break;
case 'm':
cmp = compare_page_num;
@@ -360,6 +403,29 @@ int main(int argc, char **argv)
case 'n':
cmp = compare_comm;
break;
+ case 1:
+ filter = filter | FILTER_PID;
+ errno = 0;
+ fc.pid = strtol(optarg, &endptr, 10);
+ if (errno != 0 || endptr == optarg || *endptr != '\0') {
+ printf("wrong/invalid pid in from the command line:%s\n", optarg);
+ exit(1);
+ }
+ break;
+ case 2:
+ filter = filter | FILTER_TGID;
+ errno = 0;
+ fc.tgid = strtol(optarg, &endptr, 10);
+ if (errno != 0 || endptr == optarg || *endptr != '\0') {
+ printf("wrong/invalid tgid in from the command line:%s\n", optarg);
+ exit(1);
+ }
+ break;
+ case 3:
+ filter = filter | FILTER_TASK_COMM_NAME;
+ strncpy(fc.comm, optarg, TASK_COMM_LEN);
+ fc.comm[TASK_COMM_LEN-1] = '\0';
+ break;
default:
usage();
exit(1);
generated by cgit (git 2.34.1) at 2024-06-01 15:03:14 +0000