mm: trace-vmscan-postprocess.pl: report the number of file/anon pages respectively
Until now, the reporting from trace-vmscan-postprocess.pl is not very useful because we cannot directly use this script for checking the file/anon ratio of scanning. This patch aims to report respectively the number of file/anon pages which were scanned/reclaimed by kswapd or direct-reclaim. Sample output is usually something like the following. Summary Direct reclaims: 8823 Direct reclaim pages scanned: 2438797 Direct reclaim file pages scanned: 1315200 Direct reclaim anon pages scanned: 1123597 Direct reclaim pages reclaimed: 446139 Direct reclaim file pages reclaimed: 378668 Direct reclaim anon pages reclaimed: 67471 Direct reclaim write file sync I/O: 0 Direct reclaim write anon sync I/O: 0 Direct reclaim write file async I/O: 0 Direct reclaim write anon async I/O: 4240 Wake kswapd requests: 122310 Time stalled direct reclaim: 13.78 seconds Kswapd wakeups: 25817 Kswapd pages scanned: 170779115 Kswapd file pages scanned: 162725123 Kswapd anon pages scanned: 8053992 Kswapd pages reclaimed: 129065738 Kswapd file pages reclaimed: 128500930 Kswapd anon pages reclaimed: 564808 Kswapd reclaim write file sync I/O: 0 Kswapd reclaim write anon sync I/O: 0 Kswapd reclaim write file async I/O: 36 Kswapd reclaim write anon async I/O: 730730 Time kswapd awake: 1015.50 seconds Signed-off-by: Chen Yucong <slaoub@gmail.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -47,6 +47,10 @@ use constant HIGH_KSWAPD_REWAKEUP => 21;
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use constant HIGH_NR_SCANNED => 22;
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use constant HIGH_NR_TAKEN => 23;
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use constant HIGH_NR_RECLAIMED => 24;
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use constant HIGH_NR_FILE_SCANNED => 25;
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use constant HIGH_NR_ANON_SCANNED => 26;
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use constant HIGH_NR_FILE_RECLAIMED => 27;
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use constant HIGH_NR_ANON_RECLAIMED => 28;
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my %perprocesspid;
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my %perprocess;
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@ -56,14 +60,18 @@ my $opt_read_procstat;
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my $total_wakeup_kswapd;
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my ($total_direct_reclaim, $total_direct_nr_scanned);
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my ($total_direct_nr_file_scanned, $total_direct_nr_anon_scanned);
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my ($total_direct_latency, $total_kswapd_latency);
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my ($total_direct_nr_reclaimed);
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my ($total_direct_nr_file_reclaimed, $total_direct_nr_anon_reclaimed);
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my ($total_direct_writepage_file_sync, $total_direct_writepage_file_async);
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my ($total_direct_writepage_anon_sync, $total_direct_writepage_anon_async);
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my ($total_kswapd_nr_scanned, $total_kswapd_wake);
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my ($total_kswapd_nr_file_scanned, $total_kswapd_nr_anon_scanned);
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my ($total_kswapd_writepage_file_sync, $total_kswapd_writepage_file_async);
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my ($total_kswapd_writepage_anon_sync, $total_kswapd_writepage_anon_async);
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my ($total_kswapd_nr_reclaimed);
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my ($total_kswapd_nr_file_reclaimed, $total_kswapd_nr_anon_reclaimed);
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# Catch sigint and exit on request
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my $sigint_report = 0;
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@ -374,6 +382,7 @@ EVENT_PROCESS:
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}
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my $isolate_mode = $1;
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my $nr_scanned = $4;
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my $file = $6;
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# To closer match vmstat scanning statistics, only count isolate_both
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# and isolate_inactive as scanning. isolate_active is rotation
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@ -382,6 +391,11 @@ EVENT_PROCESS:
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# isolate_both == 3
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if ($isolate_mode != 2) {
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$perprocesspid{$process_pid}->{HIGH_NR_SCANNED} += $nr_scanned;
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if ($file == 1) {
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$perprocesspid{$process_pid}->{HIGH_NR_FILE_SCANNED} += $nr_scanned;
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} else {
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$perprocesspid{$process_pid}->{HIGH_NR_ANON_SCANNED} += $nr_scanned;
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}
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}
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} elsif ($tracepoint eq "mm_vmscan_lru_shrink_inactive") {
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$details = $6;
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@ -391,8 +405,19 @@ EVENT_PROCESS:
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print " $regex_lru_shrink_inactive/o\n";
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next;
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}
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my $nr_reclaimed = $4;
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my $flags = $6;
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my $file = 0;
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if ($flags =~ /RECLAIM_WB_FILE/) {
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$file = 1;
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}
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$perprocesspid{$process_pid}->{HIGH_NR_RECLAIMED} += $nr_reclaimed;
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if ($file) {
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$perprocesspid{$process_pid}->{HIGH_NR_FILE_RECLAIMED} += $nr_reclaimed;
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} else {
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$perprocesspid{$process_pid}->{HIGH_NR_ANON_RECLAIMED} += $nr_reclaimed;
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}
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} elsif ($tracepoint eq "mm_vmscan_writepage") {
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$details = $6;
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if ($details !~ /$regex_writepage/o) {
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@ -493,7 +518,11 @@ sub dump_stats {
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$total_direct_reclaim += $stats{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN};
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$total_wakeup_kswapd += $stats{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD};
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$total_direct_nr_scanned += $stats{$process_pid}->{HIGH_NR_SCANNED};
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$total_direct_nr_file_scanned += $stats{$process_pid}->{HIGH_NR_FILE_SCANNED};
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$total_direct_nr_anon_scanned += $stats{$process_pid}->{HIGH_NR_ANON_SCANNED};
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$total_direct_nr_reclaimed += $stats{$process_pid}->{HIGH_NR_RECLAIMED};
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$total_direct_nr_file_reclaimed += $stats{$process_pid}->{HIGH_NR_FILE_RECLAIMED};
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$total_direct_nr_anon_reclaimed += $stats{$process_pid}->{HIGH_NR_ANON_RECLAIMED};
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$total_direct_writepage_file_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC};
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$total_direct_writepage_anon_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC};
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$total_direct_writepage_file_async += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC};
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@ -513,7 +542,11 @@ sub dump_stats {
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$stats{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN},
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$stats{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD},
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$stats{$process_pid}->{HIGH_NR_SCANNED},
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$stats{$process_pid}->{HIGH_NR_FILE_SCANNED},
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$stats{$process_pid}->{HIGH_NR_ANON_SCANNED},
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$stats{$process_pid}->{HIGH_NR_RECLAIMED},
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$stats{$process_pid}->{HIGH_NR_FILE_RECLAIMED},
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$stats{$process_pid}->{HIGH_NR_ANON_RECLAIMED},
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$stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC},
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$stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_ASYNC},
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$this_reclaim_delay / 1000);
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@ -552,7 +585,11 @@ sub dump_stats {
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$total_kswapd_wake += $stats{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE};
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$total_kswapd_nr_scanned += $stats{$process_pid}->{HIGH_NR_SCANNED};
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$total_kswapd_nr_file_scanned += $stats{$process_pid}->{HIGH_NR_FILE_SCANNED};
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$total_kswapd_nr_anon_scanned += $stats{$process_pid}->{HIGH_NR_ANON_SCANNED};
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$total_kswapd_nr_reclaimed += $stats{$process_pid}->{HIGH_NR_RECLAIMED};
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$total_kswapd_nr_file_reclaimed += $stats{$process_pid}->{HIGH_NR_FILE_RECLAIMED};
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$total_kswapd_nr_anon_reclaimed += $stats{$process_pid}->{HIGH_NR_ANON_RECLAIMED};
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$total_kswapd_writepage_file_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC};
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$total_kswapd_writepage_anon_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC};
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$total_kswapd_writepage_file_async += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC};
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@ -563,7 +600,11 @@ sub dump_stats {
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$stats{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE},
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$stats{$process_pid}->{HIGH_KSWAPD_REWAKEUP},
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$stats{$process_pid}->{HIGH_NR_SCANNED},
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$stats{$process_pid}->{HIGH_NR_FILE_SCANNED},
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$stats{$process_pid}->{HIGH_NR_ANON_SCANNED},
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$stats{$process_pid}->{HIGH_NR_RECLAIMED},
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$stats{$process_pid}->{HIGH_NR_FILE_RECLAIMED},
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$stats{$process_pid}->{HIGH_NR_ANON_RECLAIMED},
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$stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC},
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$stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_ASYNC});
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@ -594,7 +635,11 @@ sub dump_stats {
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print "\nSummary\n";
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print "Direct reclaims: $total_direct_reclaim\n";
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print "Direct reclaim pages scanned: $total_direct_nr_scanned\n";
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print "Direct reclaim file pages scanned: $total_direct_nr_file_scanned\n";
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print "Direct reclaim anon pages scanned: $total_direct_nr_anon_scanned\n";
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print "Direct reclaim pages reclaimed: $total_direct_nr_reclaimed\n";
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print "Direct reclaim file pages reclaimed: $total_direct_nr_file_reclaimed\n";
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print "Direct reclaim anon pages reclaimed: $total_direct_nr_anon_reclaimed\n";
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print "Direct reclaim write file sync I/O: $total_direct_writepage_file_sync\n";
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print "Direct reclaim write anon sync I/O: $total_direct_writepage_anon_sync\n";
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print "Direct reclaim write file async I/O: $total_direct_writepage_file_async\n";
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@ -604,7 +649,11 @@ sub dump_stats {
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print "\n";
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print "Kswapd wakeups: $total_kswapd_wake\n";
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print "Kswapd pages scanned: $total_kswapd_nr_scanned\n";
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print "Kswapd file pages scanned: $total_kswapd_nr_file_scanned\n";
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print "Kswapd anon pages scanned: $total_kswapd_nr_anon_scanned\n";
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print "Kswapd pages reclaimed: $total_kswapd_nr_reclaimed\n";
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print "Kswapd file pages reclaimed: $total_kswapd_nr_file_reclaimed\n";
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print "Kswapd anon pages reclaimed: $total_kswapd_nr_anon_reclaimed\n";
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print "Kswapd reclaim write file sync I/O: $total_kswapd_writepage_file_sync\n";
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print "Kswapd reclaim write anon sync I/O: $total_kswapd_writepage_anon_sync\n";
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print "Kswapd reclaim write file async I/O: $total_kswapd_writepage_file_async\n";
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@ -629,7 +678,11 @@ sub aggregate_perprocesspid() {
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$perprocess{$process}->{MM_VMSCAN_WAKEUP_KSWAPD} += $perprocesspid{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD};
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$perprocess{$process}->{HIGH_KSWAPD_REWAKEUP} += $perprocesspid{$process_pid}->{HIGH_KSWAPD_REWAKEUP};
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$perprocess{$process}->{HIGH_NR_SCANNED} += $perprocesspid{$process_pid}->{HIGH_NR_SCANNED};
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$perprocess{$process}->{HIGH_NR_FILE_SCANNED} += $perprocesspid{$process_pid}->{HIGH_NR_FILE_SCANNED};
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$perprocess{$process}->{HIGH_NR_ANON_SCANNED} += $perprocesspid{$process_pid}->{HIGH_NR_ANON_SCANNED};
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$perprocess{$process}->{HIGH_NR_RECLAIMED} += $perprocesspid{$process_pid}->{HIGH_NR_RECLAIMED};
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$perprocess{$process}->{HIGH_NR_FILE_RECLAIMED} += $perprocesspid{$process_pid}->{HIGH_NR_FILE_RECLAIMED};
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$perprocess{$process}->{HIGH_NR_ANON_RECLAIMED} += $perprocesspid{$process_pid}->{HIGH_NR_ANON_RECLAIMED};
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$perprocess{$process}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC} += $perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC};
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$perprocess{$process}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC} += $perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC};
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$perprocess{$process}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC} += $perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC};
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