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* [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.8-242-g731a535
@ 2012-09-19  8:44 mark
  0 siblings, 0 replies; only message in thread
From: mark @ 2012-09-19  8:44 UTC (permalink / raw)
  To: systemtap-cvs

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      from  8140a78d67433029d07a76ad8eb50fe7ff95298d (commit)

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- Log -----------------------------------------------------------------
commit 731a5359e2f226a0a7fa253265cf59d06c4356bf
Author: Mark Wielaard <>
Date:   Wed Sep 19 10:33:29 2012 +0200

    parse.cxx swallow tokens we are definitely not using.
    The tokens produced by expect_* () were immediately dropped on the floor
    after inspection. And a lot of places in the parser called next () just
    to get passed the current token without using it. Those tokens could
    immediately be cleaned up saving ~3MB of "lost memory".
    valgrind stap -v -k -p4 -e 'probe begin { log("Hello, World!"); exit(); }'
    ==12545==    definitely lost: 2,470,128 bytes in 51,408 blocks
    ==12545==    indirectly lost: 14,180,805 bytes in 319,624 blocks
    ==14782==    definitely lost: 18,856 bytes in 220 blocks
    ==14782==    indirectly lost: 12,432,436 bytes in 264,176 blocks


Summary of changes:
 parse.cxx |  229 ++++++++++++++++++++++++++++++++++++-------------------------
 1 files changed, 136 insertions(+), 93 deletions(-)

systemtap: system-wide probe/trace tool

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