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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Marge Bot pushed to branch master at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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Commits:
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<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b0293f78cb6acf2540389e22bdda420d0ab874da">b0293f78</a></strong>
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<span> by Matthew Pickering </span> <i> at 2024-02-10T14:29:28-05:00 </i>
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<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>rts: eras profiling mode
The eras profiling mode is useful for tracking the life-time of
closures. When a closure is written, the current era is recorded in the
profiling header. This records the era in which the closure was created.
* Enable with -he
* User mode: Use functions ghc-experimental module GHC.Profiling.Eras to modify the era
* Automatically: --automatic-era-increment, increases the user era on major
collections
* The first era is era 1
* -he<era> can be used with other profiling modes to select a specific
era
If you just want to record the era but not to perform heap profiling you
can use `-he --no-automatic-heap-samples`.
https://well-typed.com/blog/2024/01/ghc-eras-profiling/
Fixes #24332
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30 changed files:
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<a href="#71e696f452eb493722d70306c6f304fc9b2f6a95">
compiler/GHC/Cmm/Parser.y
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<a href="#8390b439f37437a2642e4e31bd6e7e91438915d1">
compiler/GHC/StgToCmm/Prof.hs
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<a href="#9114465b0120ae8f2588fc60cb49ff264de54ecb">
docs/users_guide/profiling.rst
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libraries/ghc-experimental/ghc-experimental.cabal
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libraries/ghc-experimental/src/Dummy.hs
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libraries/ghc-experimental/src/GHC/Profiling/Eras.hs
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libraries/ghc-internal/src/GHC/Profiling.hs
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rts/CloneStack.c
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rts/Continuation.c
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rts/Heap.c
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<a href="#539d43389593f2626a387f2c904f03c215c7c802">
rts/Interpreter.c
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rts/LdvProfile.h
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<a href="#63bb2dcb45bf7982130b0b95ecf366bf1a617e82">
rts/Messages.c
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rts/PrimOps.cmm
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rts/ProfHeap.c
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rts/ProfHeap.h
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rts/Profiling.c
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<a href="#515f190a948b1d6c490c96f75a3f909580e927b0">
rts/RaiseAsync.c
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<a href="#52cbed6d5a31a2e77e689138af4477c2a62f413b">
rts/RtsAPI.c
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<a href="#640fc6f2f536ba83f1694f9a7ef3d43e2d0428d3">
rts/RtsFlags.c
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<a href="#635bc8b2b9d0b6ba51b19e1a0dffa23743e4b506">
rts/RtsFlags.h
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<a href="#16c842a51a135c8ef2c7c7f94336544868348a3c">
rts/RtsSymbols.c
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rts/STM.c
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<a href="#7d6961cb073b9fe3df3a81f0ad5cf36eed293c42">
rts/Schedule.c
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rts/ThreadLabels.c
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rts/Threads.c
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rts/Updates.h
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<a href="#8a78f03f80f0544ead476d53dd0f1db7cbd68d1b">
rts/Weak.c
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<a href="#4bef7d0c5d4ce46744aaacac2800349746d7e44f">
rts/eventlog/EventLog.c
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<a href="#fff0f12525029bff0346cb7c9177fde977b271c1">
rts/include/rts/EventLogFormat.h
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The diff was not included because it is too large.
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