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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.1-49-g0d1ad60
- From: wenji at sourceware dot org
- To: systemtap-cvs at sourceware dot org
- Date: 3 Feb 2010 02:38:07 -0000
- Subject: [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.1-49-g0d1ad60
- Reply-to: systemtap at sourceware dot org
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- Log -----------------------------------------------------------------
commit 0d1ad607311857dc0b4666ce8a84c1a59c615ab9
Author: Wenji Huang <wenji.huang@oracle.com>
Date: Wed Feb 3 10:21:24 2010 +0800
PR9931: generate log to help diagnosing occasional cache hash collisions
Ideas from Frank Ch. Eigler:
- extending the hash.add() function to pass names along with the
hash-mix values, so that class hash can internally track the
hash-report string
- storing the reports themselves in the cache, beside the .ko / .c
files, and changing the cache-size-limit logic to delete
these .txt files upon garbage collection
* hash.h : New member parm_stream.
* hash.cxx (get_parms): New function to convert parms stream to string.
(hash::add): Aggregrate parms stream.
(create_hash_log): New function to log hash operation.
(find_*_hash): Log hash at the end of function.
* cache.cxx (clean_cache): Remove log when cache reaches limitation.
-----------------------------------------------------------------------
Summary of changes:
cache.cxx | 20 ++++++++++++++++++++
hash.cxx | 33 +++++++++++++++++++++++++++++++++
hash.h | 5 +++++
3 files changed, 58 insertions(+), 0 deletions(-)
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systemtap: system-wide probe/trace tool