1. 24 Jul, 2001 1 commit
  2. 23 Jul, 2001 1 commit
    • simonmar's avatar
      [project @ 2001-07-23 17:23:19 by simonmar] · dfd7d6d0
      simonmar authored
      Add a compacting garbage collector.
      
      It isn't enabled by default, as there are still a couple of problems:
      there's a fallback case I haven't implemented yet which means it will
      occasionally bomb out, and speed-wise it's quite a bit slower than the
      copying collector (about 1.8x slower).
      
      Until I can make it go faster, it'll only be useful when you're
      actually running low on real memory.
      
      '+RTS -c' to enable it.
      
      Oh, and I cleaned up a few things in the RTS while I was there, and
      fixed one or two possibly real bugs in the existing GC.
      dfd7d6d0
  3. 03 Apr, 2001 1 commit
  4. 02 Apr, 2001 1 commit
    • simonmar's avatar
      [project @ 2001-04-02 14:51:57 by simonmar] · 982c8881
      simonmar authored
      - make Printer.c a little more useful when profiling is on,
        by taking advantage of the extra information in the info table.
      
      - enhance findPtr to follow chains of references backwards through the
        heap.  This is a cunning little tool for tracking down space leaks
        (if you're comfortable using gdb as the user-interface to your
        profiler :-)
      982c8881
  5. 22 Mar, 2001 1 commit
    • hwloidl's avatar
      [project @ 2001-03-22 03:51:08 by hwloidl] · 20fc2f0c
      hwloidl authored
      -*- outline -*-
      Time-stamp: <Thu Mar 22 2001 03:50:16 Stardate: [-30]6365.79 hwloidl>
      
      This commit covers changes in GHC to get GUM (way=mp) and GUM/GdH (way=md)
      working. It is a merge of my working version of GUM, based on GHC 4.06,
      with GHC 4.11. Almost all changes are in the RTS (see below).
      
      GUM is reasonably stable, we used the 4.06 version in large-ish programs for
      recent papers. Couple of things I want to change, but nothing urgent.
      GUM/GdH has just been merged and needs more testing. Hope to do that in the
      next weeks. It works in our working build but needs tweaking to run.
      GranSim doesn't work yet (*sigh*). Most of the code should be in, but needs
      more debugging.
      
      ToDo: I still want to make the following minor modifications before the release
      - Better wrapper skript for parallel execution [ghc/compiler/main]
      - Update parallel docu: started on it but it's minimal [ghc/docs/users_guide]
      - Clean up [nofib/parallel]: it's a real mess right now (*sigh*)
      - Update visualisation tools (minor things only IIRC) [ghc/utils/parallel]
      - Add a Klingon-English glossary
      
      * RTS:
      
      Almost all changes are restricted to ghc/rts/parallel and should not
      interfere with the rest. I only comment on changes outside the parallel
      dir:
      
      - Several changes in Schedule.c (scheduling loop; createThreads etc);
        should only affect parallel code
      - Added ghc/rts/hooks/ShutdownEachPEHook.c
      - ghc/rts/Linker.[ch]: GUM doesn't know about Stable Names (ifdefs)!!
      - StgMiscClosures.h: END_TSO_QUEUE etc now defined here (from StgMiscClosures.hc)
                           END_ECAF_LIST was missing a leading stg_
      - SchedAPI.h: taskStart now defined in here; it's only a wrapper around
                    scheduleThread now, but might use some init, shutdown later
      - RtsAPI.h: I have nuked the def of rts_evalNothing
      
      * Compiler:
      
      - ghc/compiler/main/DriverState.hs
        added PVM-ish flags to the parallel way
        added new ways for parallel ticky profiling and distributed exec
      
      - ghc/compiler/main/DriverPipeline.hs
        added a fct run_phase_MoveBinary which is called with way=mp after linking;
        it moves the bin file into a PVM dir and produces a wrapper script for
        parallel execution
        maybe cleaner to add a MoveBinary phase in DriverPhases.hs but this way
        it's less intrusive and MoveBinary makes probably only sense for mp anyway
      
      * Nofib:
      
      - nofib/spectral/Makefile, nofib/real/Makefile, ghc/tests/programs/Makefile:
        modified to skip some tests if HWL_NOFIB_HACK is set; only tmp to record
        which test prgs cause problems in my working build right now
      20fc2f0c
  6. 15 Feb, 2001 1 commit
  7. 11 Feb, 2001 1 commit
    • simonmar's avatar
      [project @ 2001-02-11 17:51:07 by simonmar] · 6d35596c
      simonmar authored
      Bite the bullet and make GHCi support non-optional in the RTS.  GHC
      4.11 should be able to build GHCi without any additional tweaks now.
      
      - the Linker is split into two parts: LinkerBasic.c, containing the
        routines required by the rest of the RTS, and Linker.c, containing
        the linker proper, which is not referred to from the rest of the RTS.
        Only Linker.c requires -ldl, so programs which don't make use of the
        linker (everything except GHC, in other words) won't need -ldl.
      6d35596c
  8. 09 Feb, 2001 1 commit
  9. 29 Jan, 2001 1 commit
  10. 15 Jan, 2001 1 commit
  11. 10 Jan, 2001 1 commit
  12. 05 Jan, 2001 1 commit
  13. 03 Jan, 2001 1 commit
  14. 11 Dec, 2000 1 commit
  15. 15 Aug, 2000 1 commit
  16. 15 Jun, 2000 1 commit
    • daan's avatar
      [project @ 2000-06-15 13:23:51 by daan] · 3d124552
      daan authored
      Added new primitives and bytecodes that support
      code generation for XMLambda. All additions are
      surrounded by #ifdef XMLAMBDA.
      
      Most important additions:
      - Rows (n-tuples) which are implemented on top of Frozen Mutarrays
      - Inj (variant sums), which is implemented using a new constructor
      called Inj which contains both the value and an unboxed int
      which represents the index.
      3d124552
  17. 17 Apr, 2000 1 commit
  18. 14 Apr, 2000 1 commit
    • sewardj's avatar
      [project @ 2000-04-14 15:18:05 by sewardj] · 9ff75d08
      sewardj authored
      Clean up the runtime heap before deleting modules (and, currently, after
      every evaluation) so that the combined system can safely throw away
      modules and info tables without creating dangling refs from the heap.
      9ff75d08
  19. 12 Apr, 2000 1 commit
  20. 31 Mar, 2000 1 commit
    • hwloidl's avatar
      [project @ 2000-03-31 03:09:35 by hwloidl] · dd4c28a9
      hwloidl authored
      Numerous changes in the RTS to get GUM-4.06 working (currently works with
      parfib-ish programs). Most changes are isolated in the rts/parallel dir.
      
      rts/parallel/:
        The most important changes are a rewrite of the (un-)packing code (Pack.c)
        and changes in LAGA, GALA table operations (Global.c) expecially in
        rebuilding the tables during GC.
      
      rts/:
        Minor changes in Schedule.c, GC.c (interface to par specific root marking
        and evacuation), and lots of additions to Sanity.c (surprise ;-)
        Main.c change for startup: I use a new function rts_evalNothing to
        start non-main-PEs in a PAR || SMP setup (RtsAPI.c)
      
      includes/:
        Updated GranSim macros in PrimOps.h.
      
      lib/std:
        Few changes in PrelHandle.c etc replacing ForeignObj by Addr in a PAR
        setup (we still don't support ForeignObjs or WeakPtrs in GUM).
        Typically use
          #define FILE_OBJECT	    Addr
        when dealing with files.
      
      hslibs/lang/:
        Same as above (in Foreign(Obj).lhs, Weak.lhs, IOExts.lhs etc).
      
      -- HWL
      dd4c28a9
  21. 17 Mar, 2000 1 commit
  22. 14 Feb, 2000 1 commit
  23. 14 Jan, 2000 1 commit
  24. 13 Jan, 2000 1 commit
    • hwloidl's avatar
      [project @ 2000-01-13 14:33:57 by hwloidl] · 1b28d4e1
      hwloidl authored
      Merged GUM-4-04 branch into the main trunk. In particular merged GUM and
      SMP code. Most of the GranSim code in GUM-4-04 still has to be carried over.
      1b28d4e1
  25. 29 Nov, 1999 1 commit
    • sewardj's avatar
      [project @ 1999-11-29 18:59:23 by sewardj] · b3c8ae4e
      sewardj authored
      Make StgHugs use the same naming scheme as GHC does for class +
      instance machinery.
      
      Add machinery to do Z-encoding/decoding of names extracted from
      interface files.
      
      Make the ELF object loader work again.  It seemed to have suffered
      slight bitrot over the past couple of months.  Fix various minor bugs.
      
      Track a small change in interface file syntax.
      
      Make Printer.c print tagged-unboxed stack sections in a decent way
      now that Alastair-style stack tags have been abandoned.
      b3c8ae4e
  26. 22 Nov, 1999 2 commits
  27. 14 Jul, 1999 1 commit
  28. 29 Jun, 1999 1 commit
    • panne's avatar
      [project @ 1999-06-29 13:04:38 by panne] · 34533246
      panne authored
      Made the compilation of the RTS almost warning-free and improved the
      output of some "barf"s in the garbage collector . This is part of my
      epic crusade against "scavenge_mut_list: strange object?"... :-(
      34533246
  29. 11 May, 1999 1 commit
    • keithw's avatar
      [project @ 1999-05-11 16:47:39 by keithw] · eb407ca1
      keithw authored
      (this is number 9 of 9 commits to be applied together)
      
        Usage verification changes / ticky-ticky changes:
      
        We want to verify that SingleEntry thunks are indeed entered at most
        once.  In order to do this, -ticky / -DTICKY_TICKY turns on eager
        blackholing.  We blackhole with new blackholes: SE_BLACKHOLE and
        SE_CAF_BLACKHOLE.  We will enter one of these if we attempt to enter
        a SingleEntry thunk twice.  Note that CAFs are dealt with in by
        codeGen, and ordinary thunks by the RTS.
      
        We also want to see how many times we enter each Updatable thunk.
        To this end, we have modified -ticky.  When -ticky is on, we update
        with a permanent indirection, and arrange that when we enter a
        permanent indirection we count the entry and then convert the
        indirection to a normal indirection.  This gives us a means of
        counting the number of thunks entered again after the first entry.
        Obviously this screws up profiling, and so you can't build a ticky
        and profiling compiler any more.
      
        Also a few other changes that didn't make it into the previous 8
        commits, but form a part of this set.
      eb407ca1
  30. 04 May, 1999 1 commit
  31. 27 Apr, 1999 1 commit
  32. 15 Mar, 1999 1 commit
  33. 09 Mar, 1999 1 commit
    • sewardj's avatar
      [project @ 1999-03-09 14:51:03 by sewardj] · 9da01c71
      sewardj authored
      Many improvements resulting from first attempt to run nofib suite:
      -- More libraries (lib/*.hs) brought into operation
      -- Prelude error handling and basic I/O improved
      -- Changed bytecode immediate value fields so large constant
      --   tables can be compiled
      -- Fixed bugs: translation of FATBAR, negative floating point
      --   literals, strict constructors, handling of CAFs
      9da01c71
  34. 03 Mar, 1999 1 commit
  35. 01 Mar, 1999 1 commit
  36. 05 Feb, 1999 2 commits
  37. 18 Jan, 1999 1 commit
    • simonm's avatar
      [project @ 1999-01-18 15:21:37 by simonm] · c5a9b776
      simonm authored
      - BLACKHOLE_BQ is a mutable object, because new threads get added to
        its blocking_queue field.  Hence add a mut_link field and treat it
        as mutable in the garbage collector.
      
      - Change StgBlackHole to StgBlockingQueue while I'm at it.
      
      - Optimise evacuation of black holes: don't copy the padding
        words, just skip over them.
      
      - Several garbage collection fixes.
      
      - Improve sanity checking: now the older generations are fully checked
        at each GC.
      c5a9b776
  38. 15 Jan, 1999 1 commit
    • simonm's avatar
      [project @ 1999-01-15 17:57:03 by simonm] · 4ec89230
      simonm authored
      - Add new object BLACKHOLE_BQ: now a BLACKHOLE is defined as having an
        empty blocking queue, and the first time a thread blocks on a BLACKHOLE
        it is changed into a BLACKHOLE_BQ.
      
      - Remove UPD_INPLACE1 and replace it with UPD_IND in the two places it
        was used.  UPD_INPLACE1 wouldn't have worked in a generational setting.
      4ec89230