> On Jan 11, 2016, at 11:05 AM, Andre McCurdy <[email protected]> wrote: > > On Sat, Jan 9, 2016 at 8:42 AM, Richard Purdie > <[email protected]> wrote: >> xz compresses with a better compression ratio than gz with similar speed >> for compression and decompression. > > When you measured compression speed to be similar, was that with > parallel compression? If so, with how many CPU cores? > > A quick test of plain single threaded "tar -cz" -vs- "tar -cJ" on my > laptop seems to indicate that xz is _significantly_ slower: > > $ time tar -czf /tmp/jjj.tgz > tmp/work/cortexa15hf-neon-rdk-linux-gnueabi/glibc/2.22-r0/git > > real 0m4.708s > user 0m4.682s > sys 0m0.477s > > $ time tar -cJf /tmp/jjj.tar.xz > tmp/work/cortexa15hf-neon-rdk-linux-gnueabi/glibc/2.22-r0/git > > real 0m56.491s > user 0m56.489s > sys 0m0.744s
on 8-core machine with pixz it is recovered a bit but still is slow tried a small load tar -cJf /tmp/xx.tar.xz 21.14s user 0.36s system 102% cpu 21.061 total tar -czf /tmp/xx.tar.gz 2.35s user 0.19s system 109% cpu 2.320 total tar -Ipixz -cf /tmp/xx.tar.xz 27.14s user 0.88s system 490% cpu 5.708 total When changing the compression level to -3 ( it gets a bit faster ) pixz -3 /tmp/xx.tar /tmp/xx.tar.xz 17.58s user 0.18s system 606% cpu 2.927 total > > >> It therefore makes sense to switch >> to it for the sstate objects. >> >> As an example, the gcc-cross populate_sysroot object goes from >> 79,509,871 to 53,031,752 bytes which is a significant improvement. >> >> Signed-off-by: Richard Purdie <[email protected]> >> >> diff --git a/meta/classes/buildhistory.bbclass >> b/meta/classes/buildhistory.bbclass >> index 4153e58..734303c 100644 >> --- a/meta/classes/buildhistory.bbclass >> +++ b/meta/classes/buildhistory.bbclass >> @@ -537,7 +537,7 @@ python buildhistory_get_extra_sdkinfo() { >> filesizes = {} >> for root, _, files in >> os.walk('${SDK_OUTPUT}/${SDKPATH}/sstate-cache'): >> for fn in files: >> - if fn.endswith('.tgz'): >> + if fn.endswith('.tar.xz'): >> fsize = >> int(math.ceil(float(os.path.getsize(os.path.join(root, fn))) / 1024)) >> task = fn.rsplit(':', 1)[1].split('_', >> 1)[1].split('.')[0] >> origtotal = tasksizes.get(task, 0) >> diff --git a/meta/classes/populate_sdk_ext.bbclass >> b/meta/classes/populate_sdk_ext.bbclass >> index 3a65c07..4ff5e9e 100644 >> --- a/meta/classes/populate_sdk_ext.bbclass >> +++ b/meta/classes/populate_sdk_ext.bbclass >> @@ -189,7 +189,7 @@ python copy_buildsystem () { >> # We don't need sstate do_package files >> for root, dirs, files in os.walk(sstate_out): >> for name in files: >> - if name.endswith("_package.tgz"): >> + if name.endswith("_package.tar.xz"): >> f = os.path.join(root, name) >> os.remove(f) >> } >> diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass >> index 9bef212..d9adf01 100644 >> --- a/meta/classes/sstate.bbclass >> +++ b/meta/classes/sstate.bbclass >> @@ -294,8 +294,8 @@ def sstate_installpkg(ss, d): >> oe.path.remove(dir) >> >> sstateinst = d.expand("${WORKDIR}/sstate-install-%s/" % ss['task']) >> - sstatefetch = d.getVar('SSTATE_PKGNAME', True) + '_' + ss['task'] + >> ".tgz" >> - sstatepkg = d.getVar('SSTATE_PKG', True) + '_' + ss['task'] + ".tgz" >> + sstatefetch = d.getVar('SSTATE_PKGNAME', True) + '_' + ss['task'] + >> ".tar.xz" >> + sstatepkg = d.getVar('SSTATE_PKG', True) + '_' + ss['task'] + ".tar.xz" >> >> if not os.path.exists(sstatepkg): >> pstaging_fetch(sstatefetch, sstatepkg, d) >> @@ -372,7 +372,7 @@ python sstate_hardcode_path_unpack () { >> def sstate_clean_cachefile(ss, d): >> import oe.path >> >> - sstatepkgfile = d.getVar('SSTATE_PATHSPEC', True) + "*_" + ss['task'] + >> ".tgz*" >> + sstatepkgfile = d.getVar('SSTATE_PATHSPEC', True) + "*_" + ss['task'] + >> ".tar.xz*" >> bb.note("Removing %s" % sstatepkgfile) >> oe.path.remove(sstatepkgfile) >> >> @@ -555,7 +555,7 @@ def sstate_package(ss, d): >> tmpdir = d.getVar('TMPDIR', True) >> >> sstatebuild = d.expand("${WORKDIR}/sstate-build-%s/" % ss['task']) >> - sstatepkg = d.getVar('SSTATE_PKG', True) + '_'+ ss['task'] + ".tgz" >> + sstatepkg = d.getVar('SSTATE_PKG', True) + '_'+ ss['task'] + ".tar.xz" >> bb.utils.remove(sstatebuild, recurse=True) >> bb.utils.mkdirhier(sstatebuild) >> bb.utils.mkdirhier(os.path.dirname(sstatepkg)) >> @@ -677,14 +677,14 @@ sstate_create_package () { >> # Need to handle empty directories >> if [ "$(ls -A)" ]; then >> set +e >> - tar -czf $TFILE * >> + tar -cJf $TFILE * >> ret=$? >> if [ $ret -ne 0 ] && [ $ret -ne 1 ]; then >> exit 1 >> fi >> set -e >> else >> - tar -cz --file=$TFILE --files-from=/dev/null >> + tar -cJ --file=$TFILE --files-from=/dev/null >> fi >> chmod 0664 $TFILE >> mv -f $TFILE ${SSTATE_PKG} >> @@ -703,7 +703,7 @@ sstate_create_package () { >> # Will be run from within SSTATE_INSTDIR. >> # >> sstate_unpack_package () { >> - tar -xmvzf ${SSTATE_PKG} >> + tar -xmvJf ${SSTATE_PKG} >> # Use "! -w ||" to return true for read only files >> [ ! -w ${SSTATE_PKG} ] || touch --no-dereference ${SSTATE_PKG} >> [ ! -w ${SSTATE_PKG}.sig ] || [ ! -e ${SSTATE_PKG}.sig ] || touch >> --no-dereference ${SSTATE_PKG}.sig >> @@ -716,7 +716,7 @@ def sstate_checkhashes(sq_fn, sq_task, sq_hash, >> sq_hashfn, d, siginfo=False): >> >> ret = [] >> missed = [] >> - extension = ".tgz" >> + extension = ".tar.xz" >> if siginfo: >> extension = extension + ".siginfo" >> >> @@ -821,11 +821,11 @@ def sstate_checkhashes(sq_fn, sq_task, sq_hash, >> sq_hashfn, d, siginfo=False): >> evdata = {'missed': [], 'found': []}; >> for task in missed: >> spec, extrapath, tname = getpathcomponents(task, d) >> - sstatefile = d.expand(extrapath + generate_sstatefn(spec, >> sq_hash[task], d) + "_" + tname + ".tgz") >> + sstatefile = d.expand(extrapath + generate_sstatefn(spec, >> sq_hash[task], d) + "_" + tname + ".tar.xz") >> evdata['missed'].append( (sq_fn[task], sq_task[task], >> sq_hash[task], sstatefile ) ) >> for task in ret: >> spec, extrapath, tname = getpathcomponents(task, d) >> - sstatefile = d.expand(extrapath + generate_sstatefn(spec, >> sq_hash[task], d) + "_" + tname + ".tgz") >> + sstatefile = d.expand(extrapath + generate_sstatefn(spec, >> sq_hash[task], d) + "_" + tname + ".tar.xz") >> evdata['found'].append( (sq_fn[task], sq_task[task], >> sq_hash[task], sstatefile ) ) >> bb.event.fire(bb.event.MetadataEvent("MissedSstate", evdata), d) >> >> @@ -914,7 +914,7 @@ python sstate_eventhandler() { >> d = e.data >> # When we write an sstate package we rewrite the SSTATE_PKG >> spkg = d.getVar('SSTATE_PKG', True) >> - if not spkg.endswith(".tgz"): >> + if not spkg.endswith(".tar.xz"): >> taskname = d.getVar("BB_RUNTASK", True)[3:] >> spec = d.getVar('SSTATE_PKGSPEC', True) >> swspec = d.getVar('SSTATE_SWSPEC', True) >> @@ -922,7 +922,7 @@ python sstate_eventhandler() { >> d.setVar("SSTATE_PKGSPEC", "${SSTATE_SWSPEC}") >> d.setVar("SSTATE_EXTRAPATH", "") >> sstatepkg = d.getVar('SSTATE_PKG', True) >> - bb.siggen.dump_this_task(sstatepkg + '_' + taskname + ".tgz" >> ".siginfo", d) >> + bb.siggen.dump_this_task(sstatepkg + '_' + taskname + ".tar.xz" >> ".siginfo", d) >> } >> >> SSTATE_PRUNE_OBSOLETEWORKDIR = "1" >> diff --git a/meta/lib/oeqa/selftest/signing.py >> b/meta/lib/oeqa/selftest/signing.py >> index c33662b..4d545ad 100644 >> --- a/meta/lib/oeqa/selftest/signing.py >> +++ b/meta/lib/oeqa/selftest/signing.py >> @@ -111,13 +111,13 @@ class Signing(oeSelfTest): >> bitbake('-c cleansstate %s' % test_recipe) >> bitbake(test_recipe) >> >> - recipe_sig = glob.glob(sstatedir + '/*/*:ed:*_package.tgz.sig') >> - recipe_tgz = glob.glob(sstatedir + '/*/*:ed:*_package.tgz') >> + recipe_sig = glob.glob(sstatedir + '/*/*:ed:*_package.tar.xz.sig') >> + recipe_txz = glob.glob(sstatedir + '/*/*:ed:*_package.tar.xz') >> >> self.assertEqual(len(recipe_sig), 1, 'Failed to find .sig file.') >> - self.assertEqual(len(recipe_tgz), 1, 'Failed to find .tgz file.') >> + self.assertEqual(len(recipe_txz), 1, 'Failed to find .tar.xz file.') >> >> - ret = runCmd('gpg --homedir %s --verify %s %s' % (self.gpg_dir, >> recipe_sig[0], recipe_tgz[0])) >> + ret = runCmd('gpg --homedir %s --verify %s %s' % (self.gpg_dir, >> recipe_sig[0], recipe_txz[0])) >> # gpg: Signature made Thu 22 Oct 2015 01:45:09 PM EEST using RSA key >> ID 61EEFB30 >> # gpg: Good signature from "testuser (nocomment) >> <[email protected]>" >> self.assertIn('gpg: Good signature from', ret.output, 'Package >> signed incorrectly.') >> diff --git a/meta/lib/oeqa/selftest/sstatetests.py >> b/meta/lib/oeqa/selftest/sstatetests.py >> index 512cb4f..73e5132 100644 >> --- a/meta/lib/oeqa/selftest/sstatetests.py >> +++ b/meta/lib/oeqa/selftest/sstatetests.py >> @@ -55,15 +55,15 @@ class SStateTests(SStateBase): >> bitbake(['-ccleansstate'] + targets) >> >> bitbake(targets) >> - tgz_created = self.search_sstate('|'.join(map(str, [s + '.*?\.tgz$' >> for s in targets])), distro_specific, distro_nonspecific) >> - self.assertTrue(tgz_created, msg="Could not find sstate .tgz files >> for: %s" % ', '.join(map(str, targets))) >> + txz_created = self.search_sstate('|'.join(map(str, [s + >> '.*?\.tar.xz$' for s in targets])), distro_specific, distro_nonspecific) >> + self.assertTrue(txz_created, msg="Could not find sstate .tar.xz >> files for: %s" % ', '.join(map(str, targets))) >> >> siginfo_created = self.search_sstate('|'.join(map(str, [s + >> '.*?\.siginfo$' for s in targets])), distro_specific, distro_nonspecific) >> self.assertTrue(siginfo_created, msg="Could not find sstate .siginfo >> files for: %s" % ', '.join(map(str, targets))) >> >> bitbake(['-ccleansstate'] + targets) >> - tgz_removed = self.search_sstate('|'.join(map(str, [s + '.*?\.tgz$' >> for s in targets])), distro_specific, distro_nonspecific) >> - self.assertTrue(not tgz_removed, msg="do_cleansstate didn't remove >> .tgz sstate files for: %s" % ', '.join(map(str, targets))) >> + txz_removed = self.search_sstate('|'.join(map(str, [s + >> '.*?\.tar.xz$' for s in targets])), distro_specific, distro_nonspecific) >> + self.assertTrue(not txz_removed, msg="do_cleansstate didn't remove >> .tar.xz sstate files for: %s" % ', '.join(map(str, targets))) >> >> @testcase(977) >> def test_cleansstate_task_distro_specific_nonspecific(self): >> @@ -87,8 +87,8 @@ class SStateTests(SStateBase): >> bitbake(['-ccleansstate'] + targets) >> >> bitbake(targets) >> - self.assertTrue(self.search_sstate('|'.join(map(str, [s + >> '.*?\.tgz$' for s in targets])), distro_specific=False, >> distro_nonspecific=True) == [], msg="Found distro non-specific sstate for: >> %s" % ', '.join(map(str, targets))) >> - file_tracker_1 = self.search_sstate('|'.join(map(str, [s + >> '.*?\.tgz$' for s in targets])), distro_specific=True, >> distro_nonspecific=False) >> + self.assertTrue(self.search_sstate('|'.join(map(str, [s + >> '.*?\.tar.xz$' for s in targets])), distro_specific=False, >> distro_nonspecific=True) == [], msg="Found distro non-specific sstate for: >> %s" % ', '.join(map(str, targets))) >> + file_tracker_1 = self.search_sstate('|'.join(map(str, [s + >> '.*?\.tar.xz$' for s in targets])), distro_specific=True, >> distro_nonspecific=False) >> self.assertTrue(len(file_tracker_1) >= len(targets), msg = "Not all >> sstate files ware created for: %s" % ', '.join(map(str, targets))) >> >> self.track_for_cleanup(self.distro_specific_sstate + "_old") >> @@ -97,7 +97,7 @@ class SStateTests(SStateBase): >> >> bitbake(['-cclean'] + targets) >> bitbake(targets) >> - file_tracker_2 = self.search_sstate('|'.join(map(str, [s + >> '.*?\.tgz$' for s in targets])), distro_specific=True, >> distro_nonspecific=False) >> + file_tracker_2 = self.search_sstate('|'.join(map(str, [s + >> '.*?\.tar.xz$' for s in targets])), distro_specific=True, >> distro_nonspecific=False) >> self.assertTrue(len(file_tracker_2) >= len(targets), msg = "Not all >> sstate files ware created for: %s" % ', '.join(map(str, targets))) >> >> not_recreated = [x for x in file_tracker_1 if x not in >> file_tracker_2] >> @@ -146,18 +146,18 @@ class SStateTests(SStateBase): >> if not sstate_arch in sstate_archs_list: >> sstate_archs_list.append(sstate_arch) >> if target_config[idx] == target_config[-1]: >> - target_sstate_before_build = self.search_sstate(target + >> '.*?\.tgz$') >> + target_sstate_before_build = self.search_sstate(target + >> '.*?\.tar.xz$') >> bitbake("-cclean %s" % target) >> result = bitbake(target, ignore_status=True) >> if target_config[idx] == target_config[-1]: >> - target_sstate_after_build = self.search_sstate(target + >> '.*?\.tgz$') >> + target_sstate_after_build = self.search_sstate(target + >> '.*?\.tar.xz$') >> expected_remaining_sstate += [x for x in >> target_sstate_after_build if x not in target_sstate_before_build if not >> any(pattern in x for pattern in ignore_patterns)] >> self.remove_config(global_config[idx]) >> self.remove_recipeinc(target, target_config[idx]) >> self.assertEqual(result.status, 0, msg = "build of %s failed >> with %s" % (target, result.output)) >> >> runCmd("sstate-cache-management.sh -y --cache-dir=%s >> --remove-duplicated --extra-archs=%s" % (self.sstate_path, ','.join(map(str, >> sstate_archs_list)))) >> - actual_remaining_sstate = [x for x in self.search_sstate(target + >> '.*?\.tgz$') if not any(pattern in x for pattern in ignore_patterns)] >> + actual_remaining_sstate = [x for x in self.search_sstate(target + >> '.*?\.tar.xz$') if not any(pattern in x for pattern in ignore_patterns)] >> >> actual_not_expected = [x for x in actual_remaining_sstate if x not >> in expected_remaining_sstate] >> self.assertFalse(actual_not_expected, msg="Files should have been >> removed but ware not: %s" % ', '.join(map(str, actual_not_expected))) >> >> >> -- >> _______________________________________________ >> Openembedded-core mailing list >> [email protected] >> http://lists.openembedded.org/mailman/listinfo/openembedded-core > -- > _______________________________________________ > Openembedded-core mailing list > [email protected] > http://lists.openembedded.org/mailman/listinfo/openembedded-core
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