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2011-11-13Merge branch 'rickard/thr-progress-block/OTP-9631'Rickard Green
* rickard/thr-progress-block/OTP-9631: Replace system block with thread progress block
2011-11-13Replace system block with thread progress blockRickard Green
The ERTS internal system block functionality has been replaced by new functionality for blocking the system. The old system block functionality had contention issues and complexity issues. The new functionality piggy-backs on thread progress tracking functionality needed by newly introduced lock-free synchronization in the runtime system. When the functionality for blocking the system isn't used there is more or less no overhead at all. This since the functionality for tracking thread progress is there and needed anyway.
2011-11-07erts: remove debug variables in beam_bpBjörn-Egil Dahlberg
2011-06-14Use new atomic API in runtime systemRickard Green
All uses of the old deprecated atomic API in the runtime system have been replaced with the use of the new atomic API. In a lot of places this change imply a relaxation of memory barriers used.
2010-12-15Use new atomic types in emulatorRickard Green
2010-06-03Fix bp_hash_put to do hash value after rehashBjörn-Egil Dahlberg
If a rehash was done the old hash value was used. This was incorrect.
2010-06-03Fix assertion in trace_pattern for bifsBjörn-Egil Dahlberg
2010-06-03Teach call time trace patterns to include bifsBjörn-Egil Dahlberg
2010-06-03Teach call count tracing to use atomicsBjörn-Egil Dahlberg
Call count previously used a global lock for accessing and writing its counter in the breakpoint. This is now changed to atomics instead. The change will let call count tracing and cprof to scale better when increasing the number of schedulers.
2010-06-03Add a scheduler array for BpData at BeamInstr[-4]Björn-Egil Dahlberg
To solve the issue of multiple schedulers constantly updating the head pointer to the bp data wheel, each scheduler now has its own entrypoint to the wheel. This head pointer can be updated without a locking being taken. Previously there were no lock ...
2010-06-03Add search keys in breakpoints and a searchfunctionBjörn-Egil Dahlberg
2010-06-03Teach call_time trace to use intruction pointersBjörn-Egil Dahlberg
call_time trace will use instruction pointers instead of breakpoint data pointers. More costly lookup but the bdt structure might be deallocated, we do not want that. Remove unnecessary pattern lock.
2010-06-03Add return_time trace and PSD deletionsBjörn-Egil Dahlberg
2010-06-03Fix set_function_break to use correct breakpointBjörn-Egil Dahlberg
op_i_time_breakpoint is now used
2010-06-03Add processes hashes for call time breakpointsBjörn-Egil Dahlberg
Call time breakpoint tracing traces per call trace per process. - Add hashes to support the extra dimension. - Teach trace_info/2 to handle the extra information dimension.
2010-06-03Call time breakpoint tracing frameworkBjörn-Egil Dahlberg
Initial commit with a new breakpoint instruction and PSD areas for temporary time storage during tracing.
2010-03-22Merge branch 'pan/otp_8332_halfword' into devErlang/OTP
* pan/otp_8332_halfword: Teach testcase in driver_suite the new prototype for driver_async wx: Correct usage of driver callbacks from wx thread Adopt the new (R13B04) Nif functionality to the halfword codebase Support monitoring and demonitoring from driver threads Fix further test-suite problems Correct the VM to work for more test suites Teach {wordsize,internal|external} to system_info/1 Make tracing and distribution work Turn on instruction packing in the loader and virtual machine Add the BeamInstr data type for loaded BEAM code Fix the BEAM dissambler for the half-word emulator Store pointers to heap data in 32-bit words Add a custom mmap wrapper to force heaps into the lower address range Fit all heap data into the 32-bit address range
2010-03-10Add the BeamInstr data type for loaded BEAM codePatrik Nyblom
For cleanliness, use BeamInstr instead of the UWord data type to any machine-sized words that are used for BEAM instructions. Only use UWord for untyped words in general.
2010-03-10Store pointers to heap data in 32-bit wordsPatrik Nyblom
Store Erlang terms in 32-bit entities on the heap, expanding the pointers to 64-bit when needed. This works because all terms are stored on addresses in the 32-bit address range (the 32 most significant bits of pointers to term data are always 0). Introduce a new datatype called UWord (along with its companion SWord), which is an integer having the exact same size as the machine word (a void *), but might be larger than Eterm/Uint. Store code as machine words, as the instructions are pointers to executable code which might reside outside the 32-bit address range. Continuation pointers are stored on the 32-bit stack and hence must point to addresses in the low range, which means that loaded beam code much be placed in the low 32-bit address range (but, as said earlier, the instructions themselves are full words). No Erlang term data can be stored on C stacks (enforced by an earlier commit). This version gives a prompt, but test cases still fail (and dump core). The loader (and emulator loop) has instruction packing disabled. The main issues has been in rewriting loader and actual virtual machine. Subsystems (like distribution) does not work yet.
2009-11-20The R13B03 release.OTP_R13B03Erlang/OTP