mirror of
https://github.com/HDFGroup/hdf5.git
synced 2024-11-27 02:10:55 +08:00
100 lines
3.0 KiB
Perl
Executable File
100 lines
3.0 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
#
|
|
# Copyright by The HDF Group.
|
|
# Copyright by the Board of Trustees of the University of Illinois.
|
|
# All rights reserved.
|
|
#
|
|
# This file is part of HDF5. The full HDF5 copyright notice, including
|
|
# terms governing use, modification, and redistribution, is contained in
|
|
# the files COPYING and Copyright.html. COPYING can be found at the root
|
|
# of the source code distribution tree; Copyright.html can be found at the
|
|
# root level of an installed copy of the electronic HDF5 document set and
|
|
# is linked from the top-level documents page. It can also be found at
|
|
# http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have
|
|
# access to either file, you may request a copy from help@hdfgroup.org.
|
|
#
|
|
|
|
# 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) {
|
|
$fd = undef;
|
|
} elsif (!$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 = $3;
|
|
if ($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 $_;
|
|
}
|
|
}
|
|
|
|
|
|
if (!$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});
|
|
$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)
|
|
if $total_writes;
|
|
printf("Read: %8d calls, %10d total bytes, %10g average bytes\n",
|
|
$total_reads, $total_bytes_in, $total_bytes_in/$total_reads)
|
|
if $total_reads;
|