31 lines
1.2 KiB
Markdown
31 lines
1.2 KiB
Markdown
You can `cabal configure -fEKG` to build a git-annex that includes
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the EKG remote monitoring interface.
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To access the EKG control panel, go to
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<http://localhost:4242/> while a git-annex command is running.
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This EKG build is mostly useful for debugging resource usage problems.
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[[!img ekg.png caption="git-annex webapp startup, and assistant startup scan"]]
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Note that since only one process can open port 4242 at a time, running
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more than one git-annex process with EKG support at the same time can
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result in some "resource busy (Address already in use)" messages -- but
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git-annex will continue to work.
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----
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## full profiling
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For the really tricky memory leaks, here's how to make a profiling build of
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git-annex.
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1. `cabal configure` with only the flags you really need
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2. `cabal build --ghc-options="-prof -auto-all -caf-all"`
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This will probably fail due to some missing profiling libraries.
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You have to get the profiling versions of all needed haskell libraries
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installed somehow.
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3. Run git-annex with the special flags `+RTS -hc -p`
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4. Reproduce the memory leak problem.
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5. If the assistant was run, stop it.
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6. `hp2ps -e8in -c git-annex.hp` to generate a .ps graph of memory usage.
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