Bug ID 1097006
Summary dwz debuginfo splitting is one-thread and very very slow on packages which have too many libs
Classification openSUSE
Product openSUSE Tumbleweed
Version Current
Hardware Other
OS Other
Status NEW
Severity Normal
Priority P5 - None
Component Basesystem
Assignee pth@suse.com
Reporter tchvatal@suse.com
QA Contact qa-bugs@suse.de
CC mliska@suse.cz
Found By ---
Blocker --- 

Obs generates dwz compression for all items at once to reduce space:

[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/auth_0x0100.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/adt_null.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/auth_ed25519.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/auth_gssapi.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/auth_pam.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/auth_socket.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/disks.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/client_ed25519.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/dialog_examples.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/auth_test_plugin.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_blackhole.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/file_key_management.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/example_key_management.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_connect.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_archive.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_example.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_federated.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_mroonga.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_oqgraph.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_federatedx.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_rocksdb.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_sphinx.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_spider.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/handlersocket.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/libdaemon_example.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/locales.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/ha_test_sql_discovery.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/metadata_lock_info.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/qa_auth_client.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/query_cache_info.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/mypluglib.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/qa_auth_interface.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/qa_auth_server.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/query_response_time.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/semisync_slave.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/sql_errlog.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/semisync_master.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/server_audit.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/sbin/mysqld
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/simple_password_check.so
[  209s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mariadb-10.2.15-0.x86_64/usr/lib64/mysql/plugin/wsrep_info.so
[  497s] /usr/lib/rpm/sepdebugcrcfix: Updated 80 CRC32s, 0 CRC32s did match.

As you can see whole build took 209s while dwz split another 288s utilizing
just one core. The -multifile mode tries to reduce the size even more, but
question is if there are enough gains to justify the slowdown.

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