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  1. 17 Jan, 2013 1 commit
  2. 19 Dec, 2012 1 commit
  3. 13 Dec, 2012 2 commits
  4. 16 Nov, 2012 1 commit
    • Simon Marlow's avatar
      Add a write barrier for TVAR closures · 6d784c43
      Simon Marlow authored
      This improves GC performance when there are a lot of TVars in the
      heap.  For instance, a TChan with a lot of elements causes a massive
      GC drag without this patch.
      
      There's more to do - several other STM closure types don't have write
      barriers, so GC performance when there are a lot of threads blocked on
      STM isn't great.  But fixing the problem for TVar is a good start.
      6d784c43
  5. 13 Nov, 2012 1 commit
  6. 12 Nov, 2012 2 commits
  7. 08 Nov, 2012 2 commits
  8. 05 Nov, 2012 1 commit
  9. 01 Nov, 2012 2 commits
  10. 31 Oct, 2012 1 commit
  11. 30 Oct, 2012 2 commits
  12. 27 Oct, 2012 1 commit
  13. 26 Oct, 2012 1 commit
  14. 25 Oct, 2012 1 commit
  15. 23 Oct, 2012 2 commits
  16. 19 Oct, 2012 1 commit
  17. 15 Oct, 2012 1 commit
    • Duncan Coutts's avatar
      Add a new traceMarker# primop for use in profiling output · a609027d
      Duncan Coutts authored
      In time-based profiling visualisations (e.g. heap profiles and ThreadScope)
      it would be useful to be able to mark particular points in the execution and
      have those points in time marked in the visualisation.
      
      The traceMarker# primop currently emits an event into the eventlog. In
      principle it could be extended to do something in the heap profiling too.
      a609027d
  18. 09 Oct, 2012 1 commit
  19. 08 Oct, 2012 1 commit
    • Simon Marlow's avatar
      Produce new-style Cmm from the Cmm parser · a7c0387d
      Simon Marlow authored
      The main change here is that the Cmm parser now allows high-level cmm
      code with argument-passing and function calls.  For example:
      
      foo ( gcptr a, bits32 b )
      {
        if (b > 0) {
           // we can make tail calls passing arguments:
           jump stg_ap_0_fast(a);
        }
      
        return (x,y);
      }
      
      More details on the new cmm syntax are in Note [Syntax of .cmm files]
      in CmmParse.y.
      
      The old syntax is still more-or-less supported for those occasional
      code fragments that really need to explicitly manipulate the stack.
      However there are a couple of differences: it is now obligatory to
      give a list of live GlobalRegs on every jump, e.g.
      
        jump %ENTRY_CODE(Sp(0)) [R1];
      
      Again, more details in Note [Syntax of .cmm files].
      
      I have rewritten most of the .cmm files in the RTS into the new
      syntax, except for AutoApply.cmm which is generated by the genapply
      program: this file could be generated in the new syntax instead and
      would probably be better off for it, but I ran out of enthusiasm.
      
      Some other changes in this batch:
      
       - The PrimOp calling convention is gone, primops now use the ordinary
         NativeNodeCall convention.  This means that primops and "foreign
         import prim" code must be written in high-level cmm, but they can
         now take more than 10 arguments.
      
       - CmmSink now does constant-folding (should fix #7219)
      
       - .cmm files now go through the cmmPipeline, and as a result we
         generate better code in many cases.  All the object files generated
         for the RTS .cmm files are now smaller.  Performance should be
         better too, but I haven't measured it yet.
      
       - RET_DYN frames are removed from the RTS, lots of code goes away
      
       - we now have some more canned GC points to cover unboxed-tuples with
         2-4 pointers, which will reduce code size a little.
      a7c0387d
  20. 03 Oct, 2012 1 commit
    • ian@well-typed.com's avatar
      Build the dynamic way by default on Linux/amd64 · 898cb090
      ian@well-typed.com authored
      This required various build system changes to get the build to go
      through.
      
      In the inplace shell wrappers, we set LD_LIBRARY_PATH to allow programs
      to find their libraries. In the future, we might change the inplace tree
      to be the same shape as an installed tree instead. However, this would
      mean changing the way we do installation, as currently we use cabal's
      installation methods to install the libraries, but that only works if
      the libraries are under libraries/foo/dist-install/build/..., rather
      than in inplace/lib/...
      898cb090
  21. 24 Sep, 2012 1 commit
    • Simon Marlow's avatar
      Another overhaul of the recent_activity / idle GC handling (#5991) · 0b79d5cd
      Simon Marlow authored
      Improvements:
      
       - we now turn off the timer signal in the non-threaded RTS after
         idleGCDelay.  This should make the xmonad users on #5991 happy.
      
       - we now turn off the timer signal after idleGCDelay even if the
         idle GC is disabled with +RTS -I0.
      
       - we now do *not* turn off the timer when profiling.
      
       - more comments to explain the meaning of the various ACTIVITY_*
         values
      0b79d5cd
  22. 21 Sep, 2012 4 commits
  23. 20 Sep, 2012 2 commits
  24. 19 Sep, 2012 1 commit
  25. 18 Sep, 2012 2 commits
  26. 17 Sep, 2012 3 commits
  27. 16 Sep, 2012 1 commit