diff options
Diffstat (limited to 'Documentation/trace')
| -rw-r--r-- | Documentation/trace/ftrace-design.txt | 26 | ||||
| -rw-r--r-- | Documentation/trace/ftrace.txt | 2 | ||||
| -rw-r--r-- | Documentation/trace/postprocess/trace-vmscan-postprocess.pl | 53 |
3 files changed, 54 insertions, 27 deletions
diff --git a/Documentation/trace/ftrace-design.txt b/Documentation/trace/ftrace-design.txt index 3f669b9e8852..dd5f916b351d 100644 --- a/Documentation/trace/ftrace-design.txt +++ b/Documentation/trace/ftrace-design.txt @@ -102,30 +102,6 @@ extern void mcount(void); EXPORT_SYMBOL(mcount); -HAVE_FUNCTION_TRACE_MCOUNT_TEST -------------------------------- - -This is an optional optimization for the normal case when tracing is turned off -in the system. If you do not enable this Kconfig option, the common ftrace -code will take care of doing the checking for you. - -To support this feature, you only need to check the function_trace_stop -variable in the mcount function. If it is non-zero, there is no tracing to be -done at all, so you can return. - -This additional pseudo code would simply be: -void mcount(void) -{ - /* save any bare state needed in order to do initial checking */ - -+ if (function_trace_stop) -+ return; - - extern void (*ftrace_trace_function)(unsigned long, unsigned long); - if (ftrace_trace_function != ftrace_stub) -... - - HAVE_FUNCTION_GRAPH_TRACER -------------------------- @@ -328,8 +304,6 @@ void mcount(void) void ftrace_caller(void) { - /* implement HAVE_FUNCTION_TRACE_MCOUNT_TEST if you desire */ - /* save all state needed by the ABI (see paragraph above) */ unsigned long frompc = ...; diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt index 2479b2a0c77c..4da42616939f 100644 --- a/Documentation/trace/ftrace.txt +++ b/Documentation/trace/ftrace.txt @@ -1515,7 +1515,7 @@ Doing the same with chrt -r 5 and function-trace set. <idle>-0 3d.h4 1us+: 0:120:R + [003] 2448: 94:R sleep <idle>-0 3d.h4 2us : ttwu_do_activate.constprop.87 <-try_to_wake_up <idle>-0 3d.h3 3us : check_preempt_curr <-ttwu_do_wakeup - <idle>-0 3d.h3 3us : resched_task <-check_preempt_curr + <idle>-0 3d.h3 3us : resched_curr <-check_preempt_curr <idle>-0 3dNh3 4us : task_woken_rt <-ttwu_do_wakeup <idle>-0 3dNh3 4us : _raw_spin_unlock <-try_to_wake_up <idle>-0 3dNh3 4us : sub_preempt_count <-_raw_spin_unlock diff --git a/Documentation/trace/postprocess/trace-vmscan-postprocess.pl b/Documentation/trace/postprocess/trace-vmscan-postprocess.pl index 78c9a7b2b58f..8f961ef2b457 100644 --- a/Documentation/trace/postprocess/trace-vmscan-postprocess.pl +++ b/Documentation/trace/postprocess/trace-vmscan-postprocess.pl @@ -47,6 +47,10 @@ 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_FILE_SCANNED => 25; +use constant HIGH_NR_ANON_SCANNED => 26; +use constant HIGH_NR_FILE_RECLAIMED => 27; +use constant HIGH_NR_ANON_RECLAIMED => 28; my %perprocesspid; my %perprocess; @@ -56,14 +60,18 @@ my $opt_read_procstat; my $total_wakeup_kswapd; my ($total_direct_reclaim, $total_direct_nr_scanned); +my ($total_direct_nr_file_scanned, $total_direct_nr_anon_scanned); my ($total_direct_latency, $total_kswapd_latency); my ($total_direct_nr_reclaimed); +my ($total_direct_nr_file_reclaimed, $total_direct_nr_anon_reclaimed); my ($total_direct_writepage_file_sync, $total_direct_writepage_file_async); my ($total_direct_writepage_anon_sync, $total_direct_writepage_anon_async); my ($total_kswapd_nr_scanned, $total_kswapd_wake); +my ($total_kswapd_nr_file_scanned, $total_kswapd_nr_anon_scanned); my ($total_kswapd_writepage_file_sync, $total_kswapd_writepage_file_async); my ($total_kswapd_writepage_anon_sync, $total_kswapd_writepage_anon_async); my ($total_kswapd_nr_reclaimed); +my ($total_kswapd_nr_file_reclaimed, $total_kswapd_nr_anon_reclaimed); # Catch sigint and exit on request my $sigint_report = 0; @@ -374,6 +382,7 @@ EVENT_PROCESS: } my $isolate_mode = $1; my $nr_scanned = $4; + my $file = $6; # To closer match vmstat scanning statistics, only count isolate_both # and isolate_inactive as scanning. isolate_active is rotation @@ -382,6 +391,11 @@ EVENT_PROCESS: # isolate_both == 3 if ($isolate_mode != 2) { $perprocesspid{$process_pid}->{HIGH_NR_SCANNED} += $nr_scanned; + if ($file == 1) { + $perprocesspid{$process_pid}->{HIGH_NR_FILE_SCANNED} += $nr_scanned; + } else { + $perprocesspid{$process_pid}->{HIGH_NR_ANON_SCANNED} += $nr_scanned; + } } } elsif ($tracepoint eq "mm_vmscan_lru_shrink_inactive") { $details = $6; @@ -391,8 +405,19 @@ EVENT_PROCESS: print " $regex_lru_shrink_inactive/o\n"; next; } + my $nr_reclaimed = $4; + my $flags = $6; + my $file = 0; + if ($flags =~ /RECLAIM_WB_FILE/) { + $file = 1; + } $perprocesspid{$process_pid}->{HIGH_NR_RECLAIMED} += $nr_reclaimed; + if ($file) { + $perprocesspid{$process_pid}->{HIGH_NR_FILE_RECLAIMED} += $nr_reclaimed; + } else { + $perprocesspid{$process_pid}->{HIGH_NR_ANON_RECLAIMED} += $nr_reclaimed; + } } elsif ($tracepoint eq "mm_vmscan_writepage") { $details = $6; if ($details !~ /$regex_writepage/o) { @@ -493,7 +518,11 @@ sub dump_stats { $total_direct_reclaim += $stats{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN}; $total_wakeup_kswapd += $stats{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD}; $total_direct_nr_scanned += $stats{$process_pid}->{HIGH_NR_SCANNED}; + $total_direct_nr_file_scanned += $stats{$process_pid}->{HIGH_NR_FILE_SCANNED}; + $total_direct_nr_anon_scanned += $stats{$process_pid}->{HIGH_NR_ANON_SCANNED}; $total_direct_nr_reclaimed += $stats{$process_pid}->{HIGH_NR_RECLAIMED}; + $total_direct_nr_file_reclaimed += $stats{$process_pid}->{HIGH_NR_FILE_RECLAIMED}; + $total_direct_nr_anon_reclaimed += $stats{$process_pid}->{HIGH_NR_ANON_RECLAIMED}; $total_direct_writepage_file_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC}; $total_direct_writepage_anon_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC}; $total_direct_writepage_file_async += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC}; @@ -513,7 +542,11 @@ sub dump_stats { $stats{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN}, $stats{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD}, $stats{$process_pid}->{HIGH_NR_SCANNED}, + $stats{$process_pid}->{HIGH_NR_FILE_SCANNED}, + $stats{$process_pid}->{HIGH_NR_ANON_SCANNED}, $stats{$process_pid}->{HIGH_NR_RECLAIMED}, + $stats{$process_pid}->{HIGH_NR_FILE_RECLAIMED}, + $stats{$process_pid}->{HIGH_NR_ANON_RECLAIMED}, $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC}, $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_ASYNC}, $this_reclaim_delay / 1000); @@ -552,7 +585,11 @@ sub dump_stats { $total_kswapd_wake += $stats{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE}; $total_kswapd_nr_scanned += $stats{$process_pid}->{HIGH_NR_SCANNED}; + $total_kswapd_nr_file_scanned += $stats{$process_pid}->{HIGH_NR_FILE_SCANNED}; + $total_kswapd_nr_anon_scanned += $stats{$process_pid}->{HIGH_NR_ANON_SCANNED}; $total_kswapd_nr_reclaimed += $stats{$process_pid}->{HIGH_NR_RECLAIMED}; + $total_kswapd_nr_file_reclaimed += $stats{$process_pid}->{HIGH_NR_FILE_RECLAIMED}; + $total_kswapd_nr_anon_reclaimed += $stats{$process_pid}->{HIGH_NR_ANON_RECLAIMED}; $total_kswapd_writepage_file_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC}; $total_kswapd_writepage_anon_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC}; $total_kswapd_writepage_file_async += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC}; @@ -563,7 +600,11 @@ sub dump_stats { $stats{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE}, $stats{$process_pid}->{HIGH_KSWAPD_REWAKEUP}, $stats{$process_pid}->{HIGH_NR_SCANNED}, + $stats{$process_pid}->{HIGH_NR_FILE_SCANNED}, + $stats{$process_pid}->{HIGH_NR_ANON_SCANNED}, $stats{$process_pid}->{HIGH_NR_RECLAIMED}, + $stats{$process_pid}->{HIGH_NR_FILE_RECLAIMED}, + $stats{$process_pid}->{HIGH_NR_ANON_RECLAIMED}, $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC}, $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_ASYNC}); @@ -594,7 +635,11 @@ sub dump_stats { print "\nSummary\n"; print "Direct reclaims: $total_direct_reclaim\n"; print "Direct reclaim pages scanned: $total_direct_nr_scanned\n"; + print "Direct reclaim file pages scanned: $total_direct_nr_file_scanned\n"; + print "Direct reclaim anon pages scanned: $total_direct_nr_anon_scanned\n"; print "Direct reclaim pages reclaimed: $total_direct_nr_reclaimed\n"; + print "Direct reclaim file pages reclaimed: $total_direct_nr_file_reclaimed\n"; + print "Direct reclaim anon pages reclaimed: $total_direct_nr_anon_reclaimed\n"; print "Direct reclaim write file sync I/O: $total_direct_writepage_file_sync\n"; print "Direct reclaim write anon sync I/O: $total_direct_writepage_anon_sync\n"; print "Direct reclaim write file async I/O: $total_direct_writepage_file_async\n"; @@ -604,7 +649,11 @@ sub dump_stats { print "\n"; print "Kswapd wakeups: $total_kswapd_wake\n"; print "Kswapd pages scanned: $total_kswapd_nr_scanned\n"; + print "Kswapd file pages scanned: $total_kswapd_nr_file_scanned\n"; + print "Kswapd anon pages scanned: $total_kswapd_nr_anon_scanned\n"; print "Kswapd pages reclaimed: $total_kswapd_nr_reclaimed\n"; + print "Kswapd file pages reclaimed: $total_kswapd_nr_file_reclaimed\n"; + print "Kswapd anon pages reclaimed: $total_kswapd_nr_anon_reclaimed\n"; print "Kswapd reclaim write file sync I/O: $total_kswapd_writepage_file_sync\n"; print "Kswapd reclaim write anon sync I/O: $total_kswapd_writepage_anon_sync\n"; print "Kswapd reclaim write file async I/O: $total_kswapd_writepage_file_async\n"; @@ -629,7 +678,11 @@ sub aggregate_perprocesspid() { $perprocess{$process}->{MM_VMSCAN_WAKEUP_KSWAPD} += $perprocesspid{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD}; $perprocess{$process}->{HIGH_KSWAPD_REWAKEUP} += $perprocesspid{$process_pid}->{HIGH_KSWAPD_REWAKEUP}; $perprocess{$process}->{HIGH_NR_SCANNED} += $perprocesspid{$process_pid}->{HIGH_NR_SCANNED}; + $perprocess{$process}->{HIGH_NR_FILE_SCANNED} += $perprocesspid{$process_pid}->{HIGH_NR_FILE_SCANNED}; + $perprocess{$process}->{HIGH_NR_ANON_SCANNED} += $perprocesspid{$process_pid}->{HIGH_NR_ANON_SCANNED}; $perprocess{$process}->{HIGH_NR_RECLAIMED} += $perprocesspid{$process_pid}->{HIGH_NR_RECLAIMED}; + $perprocess{$process}->{HIGH_NR_FILE_RECLAIMED} += $perprocesspid{$process_pid}->{HIGH_NR_FILE_RECLAIMED}; + $perprocess{$process}->{HIGH_NR_ANON_RECLAIMED} += $perprocesspid{$process_pid}->{HIGH_NR_ANON_RECLAIMED}; $perprocess{$process}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC} += $perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC}; $perprocess{$process}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC} += $perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC}; $perprocess{$process}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC} += $perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC}; |
