[BTC-dev] (EXPERIMENTAL) IgProf Hooks Apparatus !

[Stanislav Datskovskiy]

Name: msg_s.txt
URL: <http://therealbitcoin.org/ml/btc-dev/attachments/20150528/msg_s_64e4fbe69223fa15e43736578883bf30e9de7277.txt>
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This patch enables the use of the very spiffy heap profiler 'IgProf.' [1]

It ought to apply cleanly, regardless of which 0.5.3.x
variant you might have.

I am presently testing with:

nohup igprof -d -mp -z -o igprof.mp.gz ./bitcoind -profileheap >& igtest.mp.log &
                                                    ^
                                                    |
                                                    \
                                                     - must have this flag

To disgorge a heap profile snapshot at a given moment:

./bitcoind profileheapdump heapdumpfilename

Please read IgProf manual to learn what to do with this.

Warning: -dl required in linker flags for this to work !!!
The patch does this. If you have a peculiar makefile where this part
did not apply cleanly, apply it by hand.

[1] http://igprof.org/running.html
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