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* Fix nonmoving gen label in gc stats reportTeo Camarasu2021-10-081-3/+6
| | | | | | | | The current code assumes the non-moving generation is always generation 1, but this isn't the case if the amount of generations is greater than 2 Fixes #20461
* Make `PosixSource.h` installed and under `rts/`John Ericson2021-08-091-1/+1
| | | | | | is used outside of the rts so we do this rather than just fish it out of the repo in ad-hoc way, in order to make packages in this repo more self-contained.
* eventlog: Add BLOCKS_SIZE eventMatthew Pickering2021-03-081-0/+3
| | | | | | | | | | | | | The BLOCKS_SIZE event reports the size of the currently allocated blocks in bytes. It is like the HEAP_SIZE event, but reports about the blocks rather than megablocks. You can work out the current heap fragmentation by looking at the difference between HEAP_SIZE and BLOCKS_SIZE. Fixes #19357
* Fix typosBrian Wignall2021-02-061-1/+1
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* rts: gc: use mutex+condvar instead of spinlooks in gc entry/exitDouglas Wilson2021-01-171-28/+2
| | | | | | used timed wait on condition variable in waitForGcThreads fix dodgy timespec calculation
* rts: add max_n_todo_overflow internal counterDouglas Wilson2021-01-171-8/+17
| | | | | | | | I've never observed this counter taking a non-zero value, however I do think it's existence is justified by the comment in grab_local_todo_block. I've not added it to RTSStats in GHC.Stats, as it doesn't seem worth the api churn.
* rts: remove no_work counterDouglas Wilson2021-01-171-14/+2
| | | | We are no longer busyish waiting, so this is no longer meaningful
* rts: stats: Fix calculation for fragmentationDouglas Wilson2021-01-091-1/+1
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* rts: stats: Some fixes to stats for sequential gcsDouglas Wilson2021-01-091-4/+12
| | | | | | | | Solves #19147. When n_capabilities > 1 we were not correctly accounting for gc time for sequential collections. In this case par_n_gcthreads == 1, however it is not guaranteed that the single gc thread is capability 0. A similar issue for copied is addressed as well.
* users guide: Describe GC lifecycle eventsBen Gamari2020-12-111-1/+1
| | | | | | Every time I am asked about how to interpret these events I need to figure it out from scratch. It's well past time that the users guide properly documents these.
* rts: Tear down stats_mutex after exitHeapProfilingwip/tsan/statsBen Gamari2020-11-011-4/+8
| | | | Since the latter wants to call getRTSStats.
* rts/Stats: Protect with mutexBen Gamari2020-11-011-3/+55
| | | | | While on face value this seems a bit heavy, I think it's far better than enforcing ordering on every access.
* rts/Stats: Hide a few unused unnecessarily global functionsBen Gamari2020-10-241-19/+0
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* Fix duplicated words and typos in comments and user guideJan Hrček2020-06-281-3/+3
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* rts: Report nonmoving collector statistics in machine-readable outputBen Gamari2020-03-051-0/+20
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* Stats: Add sync pauses to +RTS -S outputBen Gamari2020-03-051-0/+3
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* nonmoving-gc: Track time usage of nonmoving markingBen Gamari2020-03-051-16/+174
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* Fix typos, via a Levenshtein-style correctorBrian Wignall2020-01-041-1/+1
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* rts: retainer: Reduce DEBUG_RETAINER ifdef noiseDaniel Gröber2019-09-221-4/+0
| | | | | | | | | | Keeping track of the maximum stack seems like a good idea in all configurations. The associated ASSERTs only materialize in debug mode but having the statistic is nice. To make the debug code less prone to bitrotting I introduce a function 'debug()' which doesn't actually print by default and is #define'd away only when the standard DEBUG define is off.
* rts: retainer: Remove cStackSize debug counterDaniel Gröber2019-09-221-2/+0
| | | | | This can only ever be one since 5f1d949ab9 ("Remove explicit recursion in retainer profiling"), so it's pointless.
* Print the correct system memory in use with +RTS -s (#17158)Pranay Sashank2019-09-121-2/+2
| | | | | | | Use `stats.max_mem_in_use_bytes` to print the memory usage instead of `stats.max_live_bytes` which prints maximum residency. Fixes (#17158).
* rts: Properly free the RTSSummaryStats structureÖmer Sinan Ağacan2019-05-031-6/+4
| | | | | | | | `stat_exit` always allocates a `RTSSummaryStats` but only sometimes frees it, which casues leaks. With this patch we unconditionally free the structure, fixing the leak. Fixes #16584
* Fix negative mutator time in GC stats in prof buildsÖmer Sinan Ağacan2019-01-121-49/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because garbage collector calls `retainerProfile()` and `heapCensus()`, GC times normally include some of PROF times too. To fix this we have these lines: // heapCensus() is called by the GC, so RP and HC time are // included in the GC stats. We therefore subtract them to // obtain the actual GC cpu time. stats.gc_cpu_ns -= prof_cpu; stats.gc_elapsed_ns -= prof_elapsed; These variables are later used for calculating GC time excluding the final GC (which should be attributed to EXIT). exit_gc_elapsed = stats.gc_elapsed_ns - start_exit_gc_elapsed; The problem is if we subtract PROF times from `gc_elapsed_ns` and then subtract `start_exit_gc_elapsed` from the result, we end up subtracting PROF times twice, because `start_exit_gc_elapsed` also includes PROF times. We now subtract PROF times from GC after the calculations for EXIT and MUT times. The existing assertion that checks INIT + MUT + GC + EXIT = TOTAL now holds. When we subtract PROF numbers from GC, and a new assertion INIT + MUT + GC + PROF + EXIT = TOTAL also holds. Fixes #15897. New assertions added in this commit also revealed #16102, which is also fixed by this commit.
* Add missing space in report_summary outputAdam Sandberg Eriksson2018-12-071-1/+1
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* rts: fix format arguments for debugBelch calls on 32-bit systemsSergei Trofimovich2018-04-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | This change fixes build failure like this: ``` rts/Stats.c:1467:14: error: error: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'long unsigned int' [-Werror=format=] debugBelch("%51s%9" FMT_Word " %9" FMT_Word "\n", ^~~~~~~~ "",tot_live*sizeof(W_),tot_slop*sizeof(W_)); ~~~~~~~~~~~~~~~~~~~ ``` The fix is to cast sizeof() result to Word (W_). Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> Test Plan: build for 32-bit target Reviewers: bgamari, erikd, simonmar Reviewed By: simonmar Subscribers: thomie, carter Differential Revision: https://phabricator.haskell.org/D4608
* rts: One last formatting string fixBen Gamari2018-03-291-1/+1
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* More format string fixesBen Gamari2018-03-271-5/+5
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* rts: Fix profiled build after D4529Ben Gamari2018-03-271-4/+4
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* rts, base: Refactor stats.c to improve --machine-readable reportDouglas Wilson2018-03-261-302/+619
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There should be no change in the output of the '+RTS -s' (summary) report, or the 'RTS -t' (one-line) report. All data shown in the summary report is now shown in the machine readable report. All data in RTSStats is now shown in the machine readable report. init times are added to RTSStats and added to GHC.Stats. Example of the new output: ``` [("bytes allocated", "375016384") ,("num_GCs", "113") ,("average_bytes_used", "148348") ,("max_bytes_used", "206552") ,("num_byte_usage_samples", "2") ,("peak_megabytes_allocated", "6") ,("init_cpu_seconds", "0.001642") ,("init_wall_seconds", "0.001027") ,("mut_cpu_seconds", "3.020166") ,("mut_wall_seconds", "0.757244") ,("GC_cpu_seconds", "0.037750") ,("GC_wall_seconds", "0.009569") ,("exit_cpu_seconds", "0.000890") ,("exit_wall_seconds", "0.002551") ,("total_cpu_seconds", "3.060452") ,("total_wall_seconds", "0.770395") ,("major_gcs", "2") ,("allocated_bytes", "375016384") ,("max_live_bytes", "206552") ,("max_large_objects_bytes", "159344") ,("max_compact_bytes", "0") ,("max_slop_bytes", "59688") ,("max_mem_in_use_bytes", "6291456") ,("cumulative_live_bytes", "296696") ,("copied_bytes", "541024") ,("par_copied_bytes", "493976") ,("cumulative_par_max_copied_bytes", "104104") ,("cumulative_par_balanced_copied_bytes", "274456") ,("fragmentation_bytes", "2112") ,("alloc_rate", "124170795") ,("productivity_cpu_percent", "0.986838") ,("productivity_wall_percent", "0.982935") ,("bound_task_count", "1") ,("sparks_count", "5836258") ,("sparks_converted", "237") ,("sparks_overflowed", "1990408") ,("sparks_dud ", "0") ,("sparks_gcd", "3455553") ,("sparks_fizzled", "390060") ,("work_balance", "0.555606") ,("n_capabilities", "4") ,("task_count", "10") ,("peak_worker_count", "9") ,("worker_count", "9") ,("gc_alloc_block_sync_spin", "162") ,("gc_alloc_block_sync_yield", "0") ,("gc_alloc_block_sync_spin", "162") ,("gc_spin_spin", "18840855") ,("gc_spin_yield", "10355") ,("mut_spin_spin", "70331392") ,("mut_spin_yield", "61700") ,("waitForGcThreads_spin", "241") ,("waitForGcThreads_yield", "2797") ,("whitehole_gc_spin", "0") ,("whitehole_lockClosure_spin", "0") ,("whitehole_lockClosure_yield", "0") ,("whitehole_executeMessage_spin", "0") ,("whitehole_threadPaused_spin", "0") ,("any_work", "1667") ,("no_work", "1662") ,("scav_find_work", "1026") ,("gen_0_collections", "111") ,("gen_0_par_collections", "111") ,("gen_0_cpu_seconds", "0.036126") ,("gen_0_wall_seconds", "0.036126") ,("gen_0_max_pause_seconds", "0.036126") ,("gen_0_avg_pause_seconds", "0.000081") ,("gen_0_sync_spin", "21") ,("gen_0_sync_yield", "0") ,("gen_1_collections", "2") ,("gen_1_par_collections", "1") ,("gen_1_cpu_seconds", "0.001624") ,("gen_1_wall_seconds", "0.001624") ,("gen_1_max_pause_seconds", "0.001624") ,("gen_1_avg_pause_seconds", "0.000272") ,("gen_1_sync_spin", "3") ,("gen_1_sync_yield", "0") ] ``` Test Plan: Ensure that one-line and summary reports are unchanged. Reviewers: erikd, simonmar, hvr Subscribers: duog, carter, thomie, rwbarton GHC Trac Issues: #14660 Differential Revision: https://phabricator.haskell.org/D4529
* Revert "rts, base: Refactor stats.c to improve --machine-readable report"Ben Gamari2018-03-201-619/+302
| | | | This reverts commit 2d4bda2e4ac68816baba0afab00da6f769ea75a7.
* rts, base: Refactor stats.c to improve --machine-readable reportDouglas Wilson2018-03-191-302/+619
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There should be no change in the output of the '+RTS -s' (summary) report, or the 'RTS -t' (one-line) report. All data shown in the summary report is now shown in the machine readable report. All data in RTSStats is now shown in the machine readable report. init times are added to RTSStats and added to GHC.Stats. Example of the new output: ``` [("bytes allocated", "375016384") ,("num_GCs", "113") ,("average_bytes_used", "148348") ,("max_bytes_used", "206552") ,("num_byte_usage_samples", "2") ,("peak_megabytes_allocated", "6") ,("init_cpu_seconds", "0.001642") ,("init_wall_seconds", "0.001027") ,("mut_cpu_seconds", "3.020166") ,("mut_wall_seconds", "0.757244") ,("GC_cpu_seconds", "0.037750") ,("GC_wall_seconds", "0.009569") ,("exit_cpu_seconds", "0.000890") ,("exit_wall_seconds", "0.002551") ,("total_cpu_seconds", "3.060452") ,("total_wall_seconds", "0.770395") ,("major_gcs", "2") ,("allocated_bytes", "375016384") ,("max_live_bytes", "206552") ,("max_large_objects_bytes", "159344") ,("max_compact_bytes", "0") ,("max_slop_bytes", "59688") ,("max_mem_in_use_bytes", "6291456") ,("cumulative_live_bytes", "296696") ,("copied_bytes", "541024") ,("par_copied_bytes", "493976") ,("cumulative_par_max_copied_bytes", "104104") ,("cumulative_par_balanced_copied_bytes", "274456") ,("fragmentation_bytes", "2112") ,("alloc_rate", "124170795") ,("productivity_cpu_percent", "0.986838") ,("productivity_wall_percent", "0.982935") ,("bound_task_count", "1") ,("sparks_count", "5836258") ,("sparks_converted", "237") ,("sparks_overflowed", "1990408") ,("sparks_dud ", "0") ,("sparks_gcd", "3455553") ,("sparks_fizzled", "390060") ,("work_balance", "0.555606") ,("n_capabilities", "4") ,("task_count", "10") ,("peak_worker_count", "9") ,("worker_count", "9") ,("gc_alloc_block_sync_spin", "162") ,("gc_alloc_block_sync_yield", "0") ,("gc_alloc_block_sync_spin", "162") ,("gc_spin_spin", "18840855") ,("gc_spin_yield", "10355") ,("mut_spin_spin", "70331392") ,("mut_spin_yield", "61700") ,("waitForGcThreads_spin", "241") ,("waitForGcThreads_yield", "2797") ,("whitehole_gc_spin", "0") ,("whitehole_lockClosure_spin", "0") ,("whitehole_lockClosure_yield", "0") ,("whitehole_executeMessage_spin", "0") ,("whitehole_threadPaused_spin", "0") ,("any_work", "1667") ,("no_work", "1662") ,("scav_find_work", "1026") ,("gen_0_collections", "111") ,("gen_0_par_collections", "111") ,("gen_0_cpu_seconds", "0.036126") ,("gen_0_wall_seconds", "0.036126") ,("gen_0_max_pause_seconds", "0.036126") ,("gen_0_avg_pause_seconds", "0.000081") ,("gen_0_sync_spin", "21") ,("gen_0_sync_yield", "0") ,("gen_1_collections", "2") ,("gen_1_par_collections", "1") ,("gen_1_cpu_seconds", "0.001624") ,("gen_1_wall_seconds", "0.001624") ,("gen_1_max_pause_seconds", "0.001624") ,("gen_1_avg_pause_seconds", "0.000272") ,("gen_1_sync_spin", "3") ,("gen_1_sync_yield", "0") ] ``` Test Plan: Ensure that one-line and summary reports are unchanged. Reviewers: bgamari, erikd, simonmar, hvr Reviewed By: simonmar Subscribers: rwbarton, thomie, carter GHC Trac Issues: #14660 Differential Revision: https://phabricator.haskell.org/D4303
* rts: Add --internal-counters RTS flag and several countersDouglas Wilson2018-03-191-11/+178
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The existing internal counters: * gc_alloc_block_sync * whitehole_spin * gen[g].sync * gen[1].sync are now not shown in the -s report unless --internal-counters is also passed. If --internal-counters is passed we now show the counters above, reformatted, as well as several other counters. In particular, we now count the yieldThread() calls that SpinLocks do as well as their spins. The added counters are: * gc_spin (spin and yield) * mut_spin (spin and yield) * whitehole_threadPaused (spin only) * whitehole_executeMessage (spin only) * whitehole_lockClosure (spin only) * waitForGcThreadsd (spin and yield) As well as the following, which are not SpinLock-like things: * any_work * do_work * scav_find_work See the Note for descriptions of what these counters are. We add busy_wait_nops in these loops along with the counter increment where it was absent. Old internal counters output: ``` gc_alloc_block_sync: 0 whitehole_gc_spin: 0 gen[0].sync: 0 gen[1].sync: 0 ``` New internal counters output: ``` Internal Counters: Spins Yields gc_alloc_block_sync 323 0 gc_spin 9016713 752 mut_spin 57360944 47716 whitehole_gc 0 n/a whitehole_threadPaused 0 n/a whitehole_executeMessage 0 n/a whitehole_lockClosure 0 0 waitForGcThreads 2 415 gen[0].sync 6 0 gen[1].sync 1 0 any_work 2017 no_work 2014 scav_find_work 1004 ``` Test Plan: ./validate Check it builds with #define PROF_SPIN removed from includes/rts/Config.h Reviewers: bgamari, erikd, simonmar, hvr Reviewed By: simonmar Subscribers: rwbarton, thomie, carter GHC Trac Issues: #3553, #9221 Differential Revision: https://phabricator.haskell.org/D4302
* [rts] Adjust whitehole_spinDouglas Wilson2018-01-211-2/+3
| | | | | | | | | | | | | | | | | | | Rename to whitehole_gc_spin, in preparation for adding stats for the whitehole busy-loop in SMPClosureOps. Make whitehole_gc_spin volatile, and move it to be defined and statically initialised in GC.c. This saves some #ifs, and I'm pretty sure it should be volatile. Test Plan: ./validate Reviewers: bgamari, erikd, simonmar Reviewed By: bgamari Subscribers: rwbarton, thomie, carter Differential Revision: https://phabricator.haskell.org/D4300
* rts: Fix inconsistencies in how retainer and heap censuses are timed.Douglas Wilson2017-11-211-3/+3
| | | | | | | | | | | | | | | | mut_elapsed should deduct retainer profiling and heap censuses, just as mut_cpu does. mutator_cpu_ns should not deduct retainer profiling or heap censuses, since those times are included in stats.gc_cpu_ns. Reviewers: bgamari, erikd, simonmar Reviewed By: simonmar Subscribers: rwbarton, thomie Differential Revision: https://phabricator.haskell.org/D4185
* rts: Fix gc timingDouglas Wilson2017-11-151-16/+21
| | | | | | | | | | | | | | | | | | | | We were accumulating the gc times of the previous gc. `stats.gc.{cpu,elappsed}_ns` were being accumulated into `stats.gc_{cpu,elapsed}_ns` before they were set. There is also a change in that heap profiling will no longer cause gc events to be emitted. Reviewers: bgamari, erikd, simonmar Reviewed By: bgamari Subscribers: rwbarton, thomie GHC Trac Issues: #14257, #14445 Differential Revision: https://phabricator.haskell.org/D4184
* Fix Work Balance computation in RTS statsDouglas Wilson2017-07-111-6/+91
| | | | | | | | | | | | | | | | | | | | | | | | | | | An additional stat is tracked per gc: par_balanced_copied This is the the number of bytes copied by each gc thread under the balanced lmit, which is simply (copied_bytes / num_gc_threads). The stat is added to all the appropriate GC structures, so is visible in the eventlog and in GHC.Stats. A note is added explaining how work balance is computed. Remove some end of line whitespace Test Plan: ./validate experiment with the program attached to the ticket examine code changes carefully Reviewers: simonmar, austin, hvr, bgamari, erikd Reviewed By: simonmar Subscribers: Phyx, rwbarton, thomie GHC Trac Issues: #13830 Differential Revision: https://phabricator.haskell.org/D3658
* rts: Always collect statsBen Gamari2017-06-261-58/+66
| | | | | | | | | | | | | | | | | | | | | | | It seems that 12ad4d417b89462ba8e19a3c7772a931b3a93f0e enabled collection by default as its needs stats.allocated_bytes to determine whether the program has exceeded its grace limit. However, enabling stats also enables some potentially expensive times checks. In general GC statistics should be cheap to compute (relative to the GC itself), so now we always compute them. This allows us to once again disable giveStats by default. Fixes #13864. Reviewers: simonmar, austin, erikd Reviewed By: simonmar Subscribers: rwbarton, thomie GHC Trac Issues: #13864 Differential Revision: https://phabricator.haskell.org/D3669
* Prefer #if defined to #ifdefBen Gamari2017-04-281-13/+13
| | | | Our new CPP linter enforces this.
* rts: Fix stat output on 32-bit platformsBen Gamari2017-03-261-25/+33
| | | | The formatting strings fell out of sync with the arguments.
* Fix Win32 x86 build validation after D2756Tamar Christina2016-12-131-1/+1
| | | | | | | | | | | | Test Plan: ./validate Reviewers: austin, bgamari, erikd, simonmar Reviewed By: simonmar Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2825
* Overhaul of Compact Regions (#12455)Simon Marlow2016-12-071-9/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: This commit makes various improvements and addresses some issues with Compact Regions (aka Compact Normal Forms). This was the most important thing I wanted to fix. Compaction previously prevented GC from running until it was complete, which would be a problem in a multicore setting. Now, we compact using a hand-written Cmm routine that can be interrupted at any point. When a GC is triggered during a sharing-enabled compaction, the GC has to traverse and update the hash table, so this hash table is now stored in the StgCompactNFData object. Previously, compaction consisted of a deepseq using the NFData class, followed by a traversal in C code to copy the data. This is now done in a single pass with hand-written Cmm (see rts/Compact.cmm). We no longer use the NFData instances, instead the Cmm routine evaluates components directly as it compacts. The new compaction is about 50% faster than the old one with no sharing, and a little faster on average with sharing (the cost of the hash table dominates when we're doing sharing). Static objects that don't (transitively) refer to any CAFs don't need to be copied into the compact region. In particular this means we often avoid copying Char values and small Int values, because these are static closures in the runtime. Each Compact# object can support a single compactAdd# operation at any given time, so the Data.Compact library now enforces mutual exclusion using an MVar stored in the Compact object. We now get exceptions rather than killing everything with a barf() when we encounter an object that cannot be compacted (a function, or a mutable object). We now also detect pinned objects, which can't be compacted either. The Data.Compact API has been refactored and cleaned up. A new compactSize operation returns the size (in bytes) of the compact object. Most of the documentation is in the Haddock docs for the compact library, which I've expanded and improved here. Various comments in the code have been improved, especially the main Note [Compact Normal Forms] in rts/sm/CNF.c. I've added a few tests, and expanded a few of the tests that were there. We now also run the tests with GHCi, and in a new test way that enables sanity checking (+RTS -DS). There's a benchmark in libraries/compact/tests/compact_bench.hs for measuring compaction speed and comparing sharing vs. no sharing. The field totalDataW in StgCompactNFData was unnecessary. Test Plan: * new unit tests * validate * tested manually that we can compact Data.Aeson data Reviewers: gcampax, bgamari, ezyang, austin, niteria, hvr, erikd Subscribers: thomie, simonpj Differential Revision: https://phabricator.haskell.org/D2751 GHC Trac Issues: #12455
* Overhaul GC statsSimon Marlow2016-12-061-220/+217
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Visible API changes: * The C struct `GCDetails` gives the stats about a single GC. This is passed to the `gcDone()` callback if one is set via the RtsConfig. (previously we just passed a collection of values, so this is more extensible, at the expense of breaking the existing API) * `RTSStats` gives cumulative stats since the start of the program, and includes the `GCDetails` for the most recent GC. This struct can be obtained via `getRTSStats()` (the old `getGCStats()` has been removed, and `getGCStatsEnabled()` has been renamed to `getRTSStatsEnabled()`) Improvements: * The per-GC stats and cumulative stats are now cleanly separated. * Inside the RTS we have a top-level `RTSStats` struct to keep all our stats in, previously this was just a collection of strangely-named variables. This struct is mostly just copied in `getRTSStats()`, so the implementation of that function is a lot shorter. * Types are more consistent. We use a uint64_t byte count for all memory values, and Time for all time values. * Names are more consistent. We use a suffix `_bytes` for all byte counts and `_ns` for all time values. * We now collect information about the amount of memory in large objects and compact objects in `GCDetails`. (the latter was the reason I started doing this patch but it seems to have ballooned a bit!) * I fixed a bug in the calculation of the elapsed MUT time, and added an ASSERT to stop the calculations going wrong in the future. For now I kept the Haskell API in `GHC.Stats` the same, by impedence-matching with the new API. We could either break that API and make it match the C API more closely, or we could add a new API and deprecate the old one. Opinions welcome. This stuff is very easy to get wrong, and it's hard to test. Reviews welcome! Test Plan: manual testing validate Reviewers: bgamari, niteria, austin, ezyang, hvr, erikd, rwbarton, Phyx Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2756
* Use C99's boolBen Gamari2016-11-291-24/+10
| | | | | | | | | | | | Test Plan: Validate on lots of platforms Reviewers: erikd, simonmar, austin Reviewed By: erikd, simonmar Subscribers: michalt, thomie Differential Revision: https://phabricator.haskell.org/D2699
* Add mblocks_allocated to GC stats APIBartosz Nitka2016-07-271-0/+1
| | | | | | | | | | | | | | This exposes mblocks_allocated in the GCStats struct. Test Plan: it builds Reviewers: bgamari, simonmar, austin, hvr, erikd Reviewed By: erikd Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2429
* Fix productivity calculation (#12424)Simon Marlow2016-07-261-2/+2
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* {,M}BLOCK_SIZE_W * sizeof(W_) -> {,M}BLOCK_SIZETomas Carnecky2016-05-191-2/+2
| | | | | | | | | | Reviewers: austin, erikd, simonmar, bgamari Reviewed By: bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2241
* Use stdint types for Stg{Word,Int}{8,16,32,64}Tomas Carnecky2016-05-101-3/+3
| | | | | | | | | | | | | | | | | | We can't define Stg{Int,Word} in terms of {,u}intptr_t because STG depends on them being the exact same size as void*, and {,u}intptr_t does not make that guarantee. Furthermore, we also need to define StgHalf{Int,Word}, so the preprocessor if needs to stay. But we can at least keep it in a single place instead of repeating it in various files. Also define STG_{INT,WORD}{8,16,32,64}_{MIN,MAX} and use it in HsFFI.h, further reducing the need for CPP in other files. Reviewers: austin, bgamari, simonmar, hvr, erikd Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2182
* rts: Replace `nat` with `uint32_t`Erik de Castro Lopo2016-05-051-14/+14
| | | | | | | | | | | | The `nat` type was an alias for `unsigned int` with a comment saying it was at least 32 bits. We keep the typedef in case client code is using it but mark it as deprecated. Test Plan: Validated on Linux, OS X and Windows Reviewers: simonmar, austin, thomie, hvr, bgamari, hsyl20 Differential Revision: https://phabricator.haskell.org/D2166
* rts: drop unused mut_user_time_during_heap_censusSergei Trofimovich2016-02-071-6/+1
| | | | | | | | | | | | Was never used looking at history available in git. While at it marked 'mut_user_time_during_RP' as 'static'. Noticed by uselex.rb: mut_user_time_during_heap_census: [R]: exported from: ./rts/dist/build/Stats.p_o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: Kill PAPI supportBen Gamari2015-11-181-47/+1
| | | | | | | | | | | | | | | This hasn't been used for a very long time and will soon be superceded by perf_events support. Test Plan: validate Reviewers: austin, simonmar Reviewed By: austin, simonmar Subscribers: thomie, erikd Differential Revision: https://phabricator.haskell.org/D1493
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