summaryrefslogtreecommitdiffstats
path: root/bin
diff options
context:
space:
mode:
Diffstat (limited to 'bin')
-rwxr-xr-xbin/iostats88
-rwxr-xr-xbin/trace2
2 files changed, 60 insertions, 30 deletions
diff --git a/bin/iostats b/bin/iostats
index d55d550..0e96e29 100755
--- a/bin/iostats
+++ b/bin/iostats
@@ -3,51 +3,81 @@
# Usage: pipe the output of Linux's `strace' program into the stdin of
# this command, and the output of this command into gnuplot.
+my ($fast,$npasses);
+if ($ARGV[0] =~ /^--?fast$/) {
+ $fast = 1;
+ shift;
+}
+
my $filename = shift || "tstab2.h5";
my $total = 0;
my %What; # What{pos}{nbytes}{r|w} = naccesses
+my($total_writes, $total_bytes_out, $total_reads, $total_bytes_in);
while (<>) {
- if (!defined $fd) {
- if (/^open\("(.*?)".*=\s+(\d+)/ && $1 eq $filename) {
- $fd = $2;
- $pos = 0;
- }
- } elsif (/^close\((\d+)/ && $1==$fd) {
- $fd = undef;
- } elsif (/^lseek\((\d+), -?\d+,.*= (\d+)/ &&
- $1==$fd && $2>=0) {
- $pos = $2;
- } elsif (/^lseek\((\d+),/ && $1==$fd) {
- die $_;
- } elsif (/^write\((\d+), ".*?"(\.\.\.)?, \d+\)\s*= (\d+)/ &&
- $1==$fd && $3>=0) {
- my $nbytes = $3;
+ if (!defined $fd) {
+ if (/^open\("(.*?)".*=\s+(\d+)/ && $1 eq $filename) {
+ $fd = $2;
+ $pos = 0;
+ }
+ } elsif (/^close\((\d+)/ && $1==$fd) {
+ $fd = undef;
+ } elsif (!$fast &&
+ /^lseek\((\d+), -?\d+,.*= (\d+)/ &&
+ $1==$fd && $2>=0) {
+ $pos = $2;
+ } elsif (!$fast && /^lseek\((\d+),/ && $1==$fd) {
+ die $_;
+ } elsif (/^write\((\d+), ".*?"(\.\.\.)?, \d+\)\s*= (\d+)/ &&
+ $1==$fd && $3>=0) {
+ my $nbytes = $3;
+ if ($fast) {
+ $total_writes++;
+ $total_bytes_out += $nbytes;
+ } else {
$What{$pos}{$nbytes}{w}++;
printf "%d %d\n", $total, $pos;
$pos += $nbytes;
$total += $nbytes;
- } elsif (/^write\((\d+),/ && $1==$fd) {
- die $_;
- } elsif (/^read\((\d+), ".*?"(\.\.\.)?, \d+\)\s*= (\d+)/ &&
- $1==$fd && $3>=0) {
- my $nbytes = $3;
+ }
+ } elsif (/^write\((\d+),/ && $1==$fd) {
+ die $_;
+ } elsif (/^read\((\d+), ".*?"(\.\.\.)?, \d+\)\s*= (\d+)/ &&
+ $1==$fd && $3>=0) {
+ my $nbytes = $3;
+ if ($fast) {
+ $total_reads++;
+ $total_bytes_in += $nbytes;
+ } else {
$What{$pos}{$nbytes}{r}++;
printf "%d %d\n", $total, $pos;
$pos += $nbytes;
$total += $nbytes;
- } elsif (/^read\((\d+),/ && $1==$fd) {
- die $_;
- }
+ }
+ } elsif (/^read\((\d+),/ && $1==$fd) {
+ die $_;
+ }
}
-print "="x36, "\n";
+if (!$fast) {
+ print "="x36, "\n";
printf "%8s %8s %8s %8s\n","Position","NBytes","NReads","NWrites";
-for $pos (sort {$a<=>$b} keys %What) {
- for $nbytes (sort {$a<=>$b} keys %{$What{$pos}}) {
- printf "%8d %8d %8d %8d\n", $pos, $nbytes,
- $What{$pos}{$nbytes}{r},
- $What{$pos}{$nbytes}{w};
+ for $pos (sort {$a<=>$b} keys %What) {
+ for $nbytes (sort {$a<=>$b} keys %{$What{$pos}}) {
+ printf("%8d %8d %8d %8d\n", $pos, $nbytes,
+ $What{$pos}{$nbytes}{r},
+ $What{$pos}{$nbytes}{w});
+ $total_writes += $What{$pos}{$nbytes}{w};
+ $total_reads += $What{$pos}{$nbytes}{r};
+ $total_bytes_out += $What{$pos}{$nbytes}{w} * $nbytes;
+ $total_bytes_in += $What{$pos}{$nbytes}{r} * $nbytes;
+ }
}
}
+
+print "="x36, "\n";
+printf("Write: %8d calls, %10d total bytes, %10g average bytes\n",
+ $total_writes, $total_bytes_out, $total_bytes_out/$total_writes);
+printf("Read: %8d calls, %10d total bytes, %10g average bytes\n",
+ $total_reads, $total_bytes_in, $total_bytes_in/$total_reads);
diff --git a/bin/trace b/bin/trace
index dfc14c2..aa4f3ca 100755
--- a/bin/trace
+++ b/bin/trace
@@ -92,7 +92,7 @@ sub argstring ($$$) {
# Normalize the data type by removing redundant white space,
# certain type qualifiers, and indirection.
$atype =~ s/^\bconst\b//;
- $atype =~ s/\b__unused__\b//g;
+ $atype =~ s/\bUNUSED\b//g;
$atype =~ s/\s+/ /g;
$ptr = length $1 if $atype =~ s/(\*+)//;
$atype =~ s/^\s+//;