mm:vmscan: update the trace-vmscan-postprocess.pl for event vmscan/mm_vmscan_lru_isolate

When using trace-vmscan-postprocess.pl for checking the file/anon rate
of scanning, we can find that it can not be performed.  At the same
time, the following message will be reported:

  WARNING: Format not as expected for event vmscan/mm_vmscan_lru_isolate
  'file' != 'contig_taken' Fewer fields than expected in format at
  ./trace-vmscan-postprocess.pl line 171, <FORMAT> line 76.

In trace-vmscan-postprocess.pl, (contig_taken, contig_dirty, and
contig_failed) are be associated respectively to (nr_lumpy_taken,
nr_lumpy_dirty, and nr_lumpy_failed) for lumpy reclaim.  Via commit
c53919adc045 ("mm: vmscan: remove lumpy reclaim"), lumpy reclaim had
already been removed by Mel, but the update for
trace-vmscan-postprocess.pl was missed.

Signed-off-by: Chen Yucong <slaoub@gmail.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/Documentation/trace/postprocess/trace-vmscan-postprocess.pl b/Documentation/trace/postprocess/trace-vmscan-postprocess.pl
index 00e425faa2fd7691e327e3dbfcefe13940a7873a..78c9a7b2b58fdb0a55f72c23890e07dcf8f912b2 100644 (file)
--- a/Documentation/trace/postprocess/trace-vmscan-postprocess.pl
+++ b/Documentation/trace/postprocess/trace-vmscan-postprocess.pl
@@ -47,7 +47,6 @@ use constant HIGH_KSWAPD_REWAKEUP             => 21;
 use constant HIGH_NR_SCANNED                   => 22;
 use constant HIGH_NR_TAKEN                     => 23;
 use constant HIGH_NR_RECLAIMED                 => 24;
-use constant HIGH_NR_CONTIG_DIRTY              => 25;
 
 my %perprocesspid;
 my %perprocess;
@@ -105,7 +104,7 @@ my $regex_direct_end_default = 'nr_reclaimed=([0-9]*)';
 my $regex_kswapd_wake_default = 'nid=([0-9]*) order=([0-9]*)';
 my $regex_kswapd_sleep_default = 'nid=([0-9]*)';
 my $regex_wakeup_kswapd_default = 'nid=([0-9]*) zid=([0-9]*) order=([0-9]*)';
-my $regex_lru_isolate_default = 'isolate_mode=([0-9]*) order=([0-9]*) nr_requested=([0-9]*) nr_scanned=([0-9]*) nr_taken=([0-9]*) contig_taken=([0-9]*) contig_dirty=([0-9]*) contig_failed=([0-9]*)';
+my $regex_lru_isolate_default = 'isolate_mode=([0-9]*) order=([0-9]*) nr_requested=([0-9]*) nr_scanned=([0-9]*) nr_taken=([0-9]*) file=([0-9]*)';
 my $regex_lru_shrink_inactive_default = 'nid=([0-9]*) zid=([0-9]*) nr_scanned=([0-9]*) nr_reclaimed=([0-9]*) priority=([0-9]*) flags=([A-Z_|]*)';
 my $regex_lru_shrink_active_default = 'lru=([A-Z_]*) nr_scanned=([0-9]*) nr_rotated=([0-9]*) priority=([0-9]*)';
 my $regex_writepage_default = 'page=([0-9a-f]*) pfn=([0-9]*) flags=([A-Z_|]*)';
@@ -200,7 +199,7 @@ $regex_lru_isolate = generate_traceevent_regex(
                        $regex_lru_isolate_default,
                        "isolate_mode", "order",
                        "nr_requested", "nr_scanned", "nr_taken",
-                       "contig_taken", "contig_dirty", "contig_failed");
+                       "file");
 $regex_lru_shrink_inactive = generate_traceevent_regex(
                        "vmscan/mm_vmscan_lru_shrink_inactive",
                        $regex_lru_shrink_inactive_default,
@@ -375,7 +374,6 @@ EVENT_PROCESS:
                        }
                        my $isolate_mode = $1;
                        my $nr_scanned = $4;
-                       my $nr_contig_dirty = $7;
 
                        # To closer match vmstat scanning statistics, only count isolate_both
                        # and isolate_inactive as scanning. isolate_active is rotation
@@ -385,7 +383,6 @@ EVENT_PROCESS:
                        if ($isolate_mode != 2) {
                                $perprocesspid{$process_pid}->{HIGH_NR_SCANNED} += $nr_scanned;
                        }
-                       $perprocesspid{$process_pid}->{HIGH_NR_CONTIG_DIRTY} += $nr_contig_dirty;
                } elsif ($tracepoint eq "mm_vmscan_lru_shrink_inactive") {
                        $details = $6;
                        if ($details !~ /$regex_lru_shrink_inactive/o) {
@@ -539,13 +536,6 @@ sub dump_stats {
                                }
                        }
                }
-               if ($stats{$process_pid}->{HIGH_NR_CONTIG_DIRTY}) {
-                       print "      ";
-                       my $count = $stats{$process_pid}->{HIGH_NR_CONTIG_DIRTY};
-                       if ($count != 0) {
-                               print "contig-dirty=$count ";
-                       }
-               }
 
                print "\n";
        }