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admin_grundlagen:kompressionsverfahren
Unterschiede
Hier werden die Unterschiede zwischen zwei Versionen gezeigt.
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admin_grundlagen:kompressionsverfahren [2018/08/24 14:33] (aktuell) stefan_miethke angelegt |
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| + | ==== Vorbereitung ==== | ||
| + | mkdir /tmp/tmpfs | ||
| + | mount -t tmpfs tmpfs /tmp/tmpfs | ||
| + | |||
| + | ==== Vergleich ==== | ||
| + | === Unkomprimiert === | ||
| + | |||
| + | time tar cf packages.tar --directory /usr/share/doc/ packages | ||
| + | |||
| + | real 0m0.275s | ||
| + | user 0m0.049s | ||
| + | sys 0m0.224s | ||
| + | |||
| + | Größe: 158M packages.tar | ||
| + | |||
| + | rm -rf /tmp/tmpfs/* | ||
| + | time tar xf packages.tar --directory /tmp/tmpfs | ||
| + | |||
| + | real 0m0.155s | ||
| + | user 0m0.036s | ||
| + | sys 0m0.118s | ||
| + | |||
| + | === gzip === | ||
| + | time tar cf packages.tar.gz --directory /usr/share/doc/ --use-compress-program=gzip packages | ||
| + | |||
| + | real 0m5.641s | ||
| + | user 0m5.632s | ||
| + | sys 0m0.187s | ||
| + | |||
| + | Größe: 39M packages.tar.gz | ||
| + | |||
| + | rm -rf /tmp/tmpfs/* | ||
| + | time tar xf packages.tar.gz --directory /tmp/tmpfs --use-compress-program=gzip | ||
| + | |||
| + | real 0m0.951s | ||
| + | user 0m0.963s | ||
| + | sys 0m0.185s | ||
| + | === lzip === | ||
| + | time tar cf packages.tar.lzip --directory /usr/share/doc/ --use-compress-program=lzip packages | ||
| + | |||
| + | real 0m54.361s | ||
| + | user 0m54.161s | ||
| + | sys 0m0.239s | ||
| + | |||
| + | Größe: 23M packages.tar.lzip | ||
| + | |||
| + | rm -rf /tmp/tmpfs/* | ||
| + | time tar xf packages.tar.lzip --directory /tmp/tmpfs --use-compress-program=lzip | ||
| + | |||
| + | real 0m2.294s | ||
| + | user 0m2.179s | ||
| + | sys 0m0.170s | ||
| + | === bzip2 === | ||
| + | time tar cf packages.tar.bz --directory /usr/share/doc/ --use-compress-program=bzip2 packages | ||
| + | |||
| + | real 0m17.583s | ||
| + | user 0m17.560s | ||
| + | sys 0m0.237s | ||
| + | |||
| + | Größe: 27M packages.tar.bz | ||
| + | |||
| + | rm -rf /tmp/tmpfs/* | ||
| + | time tar xf packages.tar.bz --directory /tmp/tmpfs --use-compress-program=bzip2 | ||
| + | |||
| + | real 0m6.262s | ||
| + | user 0m6.251s | ||
| + | sys 0m0.300s | ||
| + | === xz === | ||
| + | time tar cf packages.tar.xz --directory /usr/share/doc/ --use-compress-program=xz packages | ||
| + | |||
| + | real 0m56.015s | ||
| + | user 0m55.985s | ||
| + | sys 0m0.371s | ||
| + | |||
| + | Größe: 23M packages.tar.xz | ||
| + | |||
| + | rm -rf /tmp/tmpfs/* | ||
| + | time tar xf packages.tar.xz --directory /tmp/tmpfs --use-compress-program=xz | ||
| + | |||
| + | real 0m1.834s | ||
| + | user 0m1.830s | ||
| + | sys 0m0.207s | ||
admin_grundlagen/kompressionsverfahren.txt · Zuletzt geändert: 2018/08/24 14:33 von stefan_miethke
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