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From: "paulo.cesar.pereira.de.andrade at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug dynamic-link/17645] RFE: Improve performance of dynamic loader for deeply nested DSO dependencies.
Date: Sat, 29 Nov 2014 22:30:00 -0000 [thread overview]
Message-ID: <bug-17645-131-XIkkK8oRNp@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-17645-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=17645
--- Comment #7 from Paulo Andrade <paulo.cesar.pereira.de.andrade at gmail dot com> ---
Created attachment 7977
--> https://sourceware.org/bugzilla/attachment.cgi?id=7977&action=edit
Scratch test case
Carlos, I would appreciate any comments about the scratch test
case as well as suggestions about other patterns to test. There
is a detailed description on how to run the tests in the README
file.
For a quick visualization, the tests with different solutions
(due to cycles or multiple dsos without dependencies) are like
this, (old) means current glibc, (new) means with the proposed
patch:
a -> b
b -> c
c ->
d ->
link old new
------------------------------
abcd dcba_abcd cbad_abcd
abdc cdba_abdc dcba_abdc
acbd dcba_abcd cdba_abcd
acdb cbda_adbc cbad_adbc
adbc cbda_adbc dcba_adbc
adcb cbda_adbc dcba_abcd
bacd dcba_abcd cbda_abcd
badc cdba_abdc dcba_abdc
bcad dcba_abcd cbad_abcd
bcda cbad_dabc cbda_dabc
bdac cbad_dabc dcba_dabc
bdca cbad_dabc dcba_abcd
cabd dcba_abcd cdba_abcd
cadb cbda_adbc cbda_dabc
cbad dcba_abcd cdba_abcd
cbda cbad_dabc cbad_abdc
cdab cbad_dabc cbad_adbc
cdba cbad_dabc cdba_dabc
dabc cbad_dabc dcba_dabc
dacb cbad_dabc dcba_abcd
dbac cbad_dabc dcba_abdc
dbca cbad_dabc dcba_abcd
dcab cbad_dabc dcba_abcd
dcba cbad_dabc dcba_abcd
A -> B
B -> C
C -> D
D -> A
link old new
------------------------------
ABCD DCBA_ABCD ADCB_ABCD
ABDC DCBA_ABCD ADCB_DABC
ACBD BADC_CDAB ADCB_ABCD
ACDB DCBA_ABCD ADCB_CDAB
ADBC DCBA_ABCD ADCB_DABC
ADCB DCBA_ABCD ADCB_CDAB
BACD ADCB_BCDA BADC_ABCD
BADC ADCB_BCDA BADC_DABC
BCAD ADCB_BCDA BADC_ABCD
BCDA ADCB_BCDA BADC_BCDA
BDAC ADCB_BCDA BADC_DABC
BDCA CBAD_DABC BADC_BCDA
CABD BADC_CDAB CBAD_ABCD
CADB DCBA_ABCD CBAD_CDAB
CBAD BADC_CDAB CBAD_ABCD
CBDA BADC_CDAB CBAD_BCDA
CDAB BADC_CDAB CBAD_CDAB
CDBA BADC_CDAB CBAD_BCDA
DABC CBAD_DABC DCBA_DABC
DACB CBAD_DABC DCBA_CDAB
DBAC ADCB_BCDA DCBA_DABC
DBCA CBAD_DABC DCBA_BCDA
DCAB CBAD_DABC DCBA_CDAB
DCBA CBAD_DABC DCBA_BCDA
--
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next prev parent reply other threads:[~2014-11-29 22:30 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-25 13:37 [Bug dynamic-link/17645] New: " paulo.cesar.pereira.de.andrade at gmail dot com
2014-11-25 13:52 ` [Bug dynamic-link/17645] " paulo.cesar.pereira.de.andrade at gmail dot com
2014-11-25 14:10 ` paulo.cesar.pereira.de.andrade at gmail dot com
2014-11-25 14:37 ` paulo.cesar.pereira.de.andrade at gmail dot com
2014-11-26 16:41 ` carlos at redhat dot com
2014-11-26 21:56 ` paulo.cesar.pereira.de.andrade at gmail dot com
2014-11-28 15:51 ` carlos at redhat dot com
2014-11-29 22:30 ` paulo.cesar.pereira.de.andrade at gmail dot com [this message]
2015-03-17 22:50 ` paulo.cesar.pereira.de.andrade at gmail dot com
2015-03-18 17:21 ` paulo.cesar.pereira.de.andrade at gmail dot com
2015-03-18 17:26 ` paulo.cesar.pereira.de.andrade at gmail dot com
2020-05-06 16:30 ` romain.geissler at amadeus dot com
2020-05-06 16:54 ` carlos at redhat dot com
2020-07-03 16:18 ` carlos at redhat dot com
2020-07-03 16:18 ` carlos at redhat dot com
2020-07-21 14:48 ` s at martinien dot de
2020-12-27 18:31 ` romain.geissler at amadeus dot com
2020-12-27 18:33 ` romain.geissler at amadeus dot com
2021-03-03 22:29 ` san+sourceware at smederijmerlijn dot nl
2021-04-01 21:16 ` hi-angel at yandex dot ru
2021-07-06 11:08 ` marat at slonopotamus dot org
2021-08-10 13:03 ` romain.geissler at amadeus dot com
2021-10-21 19:21 ` cvs-commit at gcc dot gnu.org
2021-10-21 19:23 ` adhemerval.zanella at linaro dot org
2023-11-24 7:24 ` fweimer at redhat dot com
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