Include Jan Psota's benchmark script and results in the 'contrib' dir

SVN-Revision: 9

diff --git a/contrib/psota-benchmark/results.txt b/contrib/psota-benchmark/results.txt
new file mode 100644 (file)
index 0000000..8197b28
--- /dev/null
+++ b/contrib/psota-benchmark/results.txt
@@ -0,0 +1,122 @@
+ODP: [Bug-tar] GNU tar, star and BSD tar speed comparision +new script
+
+Jan Psota
+Thu, 25 Oct 2007 06:51:13 -0700
+
+Latest TCP script at the bottom (3180 bytes).
+4 tests: 64bit dual core Athlon tmpfs / disk (reiserfs) - 60MB/s,
+        32bit Athlon tmpfs / disk (reiserfs) - 55MB/s
+Both machines were idle -- used for testing only.
+Tarball and extracted files were on different physical devices.
+Test data: linux 2.6.22/3 kernel sources for memory operations,
+for the other data average file size should bring enough info.
+
+2 x [...] processor means 1 processor with 2 cores (2 entries in cpuinfo).
+Archive format is set to pax (Joerg).
+Let's end with it. I only wanted to send You a new version of TCP script :-).
+
+--
+Jan Psota
+
+TCP, version 2007-10-25
+Linux 2.6.22-suspend2-r2 / Gentoo Base System release 2.0.0_rc5
+2012MB of memory, 2 x AMD Athlon(tm) 64 X2 Dual Core Processor 4200+ 2211.348 
+512 KB 4426.24 bmips
+gcc (GCC) 4.2.2 (Gentoo 4.2.2 p1.0)
+CFLAGS="-O2 -march=k8 -pipe"
+
+bsdtar: bsdtar 2.3.4 - libarchive 2.3.4
+gnutar: tar (GNU tar) 1.19
+star:   star: star 1.5a85 (x86_64-unknown-linux-gnu)
+
+best time of 5 repetitions,
+        src=linux-2.6.23, 291M in 23867 files, avg 13KB/file,
+        archive=/tmp/tcp.tar, extract to /tmp/tcptmp
+program operation       real    user    system  %CPU         speed
+bsdtar  create          0.764   0.232   0.532   99.96       370308 KB/s
+gnutar  create          0.743   0.200   0.512   95.87       380775 KB/s
+star    create          0.587   0.040   0.820   100.00      441247 KB/s
+
+bsdtar  list            0.164   0.096   0.068   99.84      1579341 KB/s
+gnutar  list            0.218   0.064   0.152   98.92      1188128 KB/s
+star    list            0.359   0.044   0.240   79.09       721481 KB/s
+
+bsdtar  extract         0.733   0.200   0.504   96.02       353358 KB/s
+gnutar  extract         0.625   0.092   0.508   96.02       414419 KB/s
+star    extract         0.875   0.096   0.980   100.00      296013 KB/s
+
+bsdtar  compare         0.001   0.000   0.000   0.00     259012000 KB/s
+gnutar  compare         0.719   0.288   0.400   95.66       360239 KB/s
+star    compare         0.695   0.224   0.636   100.00      372679 KB/s
+
+[...]
+best time of 3 repetitions,
+        src=/home, 3.2G in 7447 files, avg 554KB/file,
+        archive=/var/tcp.tar, extract to /mnt/a/tcptmp
+program operation       real    user    system  %CPU         speed
+bsdtar  create          184.680 0.552   13.365  7.53         17958 KB/s
+gnutar  create          159.240 0.256   12.417  7.95         20827 KB/s
+star    create          181.779 0.140   14.789  8.21         18203 KB/s
+
+bsdtar  list            0.053   0.032   0.016   91.41     62435471 KB/s
+gnutar  list            56.535  0.136   3.764   6.89         58531 KB/s
+star    list            56.652  0.080   5.236   9.38         58410 KB/s
+
+bsdtar  extract         78.914  0.820   15.149  20.23        41932 KB/s
+gnutar  extract         78.480  0.196   14.197  18.33        42164 KB/s
+star    extract         79.439  0.132   12.973  16.49        41655 KB/s
+
+bsdtar  compare         0.001   0.000   0.000   0.00    3309080000 KB/s
+gnutar  compare         61.771  3.464   8.905   20.02        53570 KB/s
+star    compare         57.561  1.728   9.897   20.19        57488 KB/s
+
+
+Linux 2.6.22-suspend2-smp / Gentoo Base System release 2.0.0_rc5
+504MB of memory, 1 x AMD Athlon(tm) Processor 1500.033 256 KB 3002.55 bmips
+gcc (GCC) 4.2.2 (Gentoo 4.2.2 p1.0)
+CFLAGS="-O2 -march=athlon-xp -mfpmath=sse -frename-registers -pipe"
+
+bsdtar: bsdtar 2.3.4 - libarchive 2.3.4
+gnutar: tar (GNU tar) 1.19
+star:   star: star 1.5a85 (i686-pc-linux-gnu)
+
+best time of 3 repetitions,
+        src=/usr/src/linux-2.6.22-suspend2/drivers, 119M in 5900 files,
+        avg 21KB/file, archive=/tmp/tcp.tar, extract to /tmp/tcptmp
+program operation       real    user    system  %CPU         speed
+bsdtar  create          1.329   0.192   1.132   99.63        89784 KB/s
+gnutar  create          1.223   0.124   1.092   99.46        97566 KB/s
+star    create          1.848   0.036   1.708   94.36        61372 KB/s
+
+bsdtar  list            0.167   0.060   0.108   100.00      679137 KB/s
+gnutar  list            0.161   0.040   0.124   100.00      704447 KB/s
+star    list            0.859   0.044   0.716   88.51       132032 KB/s
+
+bsdtar  extract         1.186   0.172   1.012   99.87        95629 KB/s
+gnutar  extract         1.064   0.056   1.004   99.63       106593 KB/s
+star    extract         1.920   0.088   1.724   94.40        59070 KB/s
+
+bsdtar  compare         0.002   0.000   0.000   0.00      56708000 KB/s
+gnutar  compare         0.925   0.232   0.692   99.90       122611 KB/s
+star    compare         1.569   0.376   1.096   93.79        72285 KB/s
+
+[...]
+best time of 3 repetitions,
+        src=/home/jasiu, 2.1G in 8416 files, avg 277KB/file,
+        archive=/home/j2/tcp.tar, extract to /mnt/a/tar/tcptmp
+program operation       real    user    system  %CPU         speed
+bsdtar  create          182.171 1.692   29.130  16.91        11584 KB/s
+gnutar  create          174.999 0.632   27.450  16.04        12059 KB/s
+star    create          180.004 0.360   41.795  23.41        11677 KB/s
+
+bsdtar  list            0.214   0.076   0.136   99.04      9822294 KB/s
+gnutar  list            0.210   0.076   0.136   100.00    10009385 KB/s
+star    list            43.462  0.148   18.109  42.00        48363 KB/s
+
+bsdtar  extract         94.912  4.476   31.574  37.98        22146 KB/s
+gnutar  extract         94.657  0.396   29.462  31.54        22206 KB/s
+star    extract         100.814 0.400   39.906  39.98        20849 KB/s
+
+bsdtar  compare         0.003   0.000   0.004   100.00   700657000 KB/s
+gnutar  compare         80.174  3.932   20.365  30.30        26217 KB/s
+star    compare         73.911  8.341   27.670  48.72        28439 KB/s

diff --git a/contrib/psota-benchmark/tcp.sh b/contrib/psota-benchmark/tcp.sh
new file mode 100755 (executable)
index 0000000..6c0e4b5
--- /dev/null
+++ b/contrib/psota-benchmark/tcp.sh
@@ -0,0 +1,104 @@
+#!/bin/sh
+# tar comparision program
+# 2007-10-25 Jan Psota
+
+n=3                                     # number of repetitions
+TAR=(bsdtar gnutar star)                # TApeArchivers to compare
+OPT=("" "--seek" "-no-fsync")
+pax="--format=pax"                      # comment out for defaults
+OPN=(create list extract compare)       # operations
+version="2007-10-25"
+TIMEFORMAT=$'%R\t%U\t%S\t%P'
+LC_ALL=C
+
+test $# -ge 2 || {
+        echo -e "usage:\t$0 source_dir where_to_place_archive 
+[where_to_extract_it]
+
+TCP, version $version
+TCP stands for Tar Comparision Program here.
+It currently compares: BSD tar (bsdtar), GNU tar (gnutar) and star in archive
+creation, listing, extraction and archive-to-extracted comparision.
+Tcp prints out best time of n=$n repetitions.
+
+Tcp creates temporary archive named tcp.tar with $pax and some native
+(--seek/-no-fsync) options and extracts it to [\$3]/tcptmp/.
+If unset, third argument defaults to [\$2].
+After normal exit tcp removes tarball and extracted files.
+Tcp does not check filesystems destination directories are on for free space,
+so make sure there is enough space (a bit more than source_dir uses) for both:
+archive and extracted files.
+Do not use white space in arguments.
+        Jan Psota, $version"
+        exit 0
+}
+src=$1
+dst=$2/tcp.tar
+dst_path=${3:-$2}/tcptmp
+test -e $dst -o -e /tmp/tcp \
+        && { echo "$dst or /tmp/tcp exists, exiting"; exit 1; }
+mkdir $dst_path || exit 2
+
+use_times ()
+{
+        awk -F"\t" -vN=$n -vL="`du -k $dst`" -vOFS="\t" -vORS="" '
+                { if (NF==4) { printf "\t%s\t%10.1d KB/s\n", $0, ($1+0>0 ? 
+(L+0)/($1+0) : 0) } }' \
+                /tmp/tcp | sort | head -1
+        > /tmp/tcp
+}
+
+test -d $src || { echo "'$src' is not a directory"; exit 3; }
+
+# system information: type, release, memory, cpu(s), compiler and flags
+echo -e "TCP, version $version\n"`uname -sr`" / "`head -1 /etc/*-release`
+free -m | awk '/^Mem/ { printf "%dMB of memory, ", $2 }'
+test -e /proc/cpuinfo \
+        && awk -F: '/name|cache size|MHz|mips/ { if (!a) b=b $2 }
+        /^$/ { a++ } END { print a" x"b" bmips" }' /proc/cpuinfo
+test -e /etc/gentoo-release \
+        && gcc --version | head -1 && grep ^CFLAGS /etc/make.conf
+
+# tar versions
+echo
+for tar in [EMAIL PROTECTED]; do echo -ne "$tar:\t"; $tar --version | head -1; 
+done
+
+echo -e "\nbest time of $n repetitions,\n"\
+"       src=$src, "\
+`du -sh $src | awk '{print $1}'`" in "`find $src | wc -l`" files, "\
+"avg "$((`du -sk $src | awk '{print $1}'`/`find $src -type f | wc 
+-l`))"KB/file,\n"\
+"       archive=$dst, extract to $dst_path"
+
+echo -e "program\toperation\treal\tuser\tsystem\t%CPU\t     speed"
+> /tmp/tcp
+let op_num=0
+for op in "cf $dst $pax -C $src ." "tf $dst" "xf $dst -C $dst_path" \
+        "f $dst -C $dst_path --diff"; do
+        let tar_num=0
+        for tar in [EMAIL PROTECTED]; do
+                echo -en "$tar\t${OPN[op_num]}\t"
+                for ((i=1; i<=$n; i++)); do
+                        echo $op | grep -q ^cf && rm -f $dst
+                        echo $op | grep -q ^xf &&
+                                { chmod -R u+w $dst_path
+                                rm -rf $dst_path; mkdir $dst_path; }
+                        sync
+                        if echo $op | grep -q ^f; then  # op == compare
+                                time $tar $op ${OPT[$tar_num]} > /dev/null
+                        else    # op in (create | list | extract)
+                                time $tar $op ${OPT[$tar_num]} > /dev/null \
+                                        || break 3
+                        fi 2>> /tmp/tcp
+                done
+                use_times
+                let tar_num++
+        done
+        let op_num++
+        echo
+done
+rm -rf $dst_path $dst
+echo
+cat /tmp/tcp
+rm -f /tmp/tcp