aboutsummaryrefslogtreecommitdiffstats
path: root/erts
AgeCommit message (Collapse)Author
2019-03-08Merge branch 'sverker/master/ets-no-mbuf-trapping/OTP-15660'Sverker Eriksson
* sverker/master/ets-no-mbuf-trapping/OTP-15660: erts: Remove ets traversal yielding if heap fragment
2019-03-08Merge pull request #2174 from bjorng/bjorn/tune-beam-2Björn Gustavsson
Tune BEAM instructions for the new compiler (part 2)
2019-03-07Merge branch 'sverker/maint/ets-no-mbuf-trapping/OTP-15660'Sverker Eriksson
into sverker/master/ets-no-mbuf-trapping/OTP-15660
2019-03-07Merge branch 'sverker/ets-no-mbuf-trapping/OTP-15660'Sverker Eriksson
into sverker/maint/ets-no-mbuf-trapping/OTP-15660
2019-03-07erts: Remove ets traversal yielding if heap fragmentSverker Eriksson
Many heap fragments do no longer make the GC slow. Even worse, we are not guaranteed that a yield will provoke a GC removing the fragments, which might lead to a one-yield-per-bucket scenario if the heap fragment(s) still remains after each yield.
2019-03-07Merge branch 'rickard/make-fixes-21/OTP-15657' into maintRickard Green
* rickard/make-fixes-21/OTP-15657: Remove own configured RM make variable
2019-03-07Merge branch 'rickard/make-fixes-22/OTP-15657'Rickard Green
* rickard/make-fixes-22/OTP-15657: Remove own configured RM make variable
2019-03-07Slightly optimize binary constructionBjörn Gustavsson
Use S operands instead of s operands for a slight speed increase and reduction in code size of process_main(). Use micro instructions for frequently executed instructions. While at it, use safe multiplication in gen_get_integer() in beam_load.c.
2019-03-06Merge branch 'rickard/send-bump-reds/ERL-773/OTP-15513'Rickard Green
* rickard/send-bump-reds/ERL-773/OTP-15513: Fix faulty assertion Bump reductions on send based on message size
2019-03-06Merge 'rickard/make-fixes-21/OTP-15657' into 'rickard/make-fixes-22/OTP-15657'Rickard Green
* rickard/make-fixes-21/OTP-15657: Remove own configured RM make variable
2019-03-06Merge 'rickard/make-fixes-20/OTP-15657' into 'rickard/make-fixes-21/OTP-15657'Rickard Green
* rickard/make-fixes-20/OTP-15657: Remove own configured RM make variable
2019-03-06Merge 'rickard/make-fixes-19/OTP-15657' into 'rickard/make-fixes-20/OTP-15657'Rickard Green
* rickard/make-fixes-19/OTP-15657: Remove own configured RM make variable
2019-03-06Merge 'rickard/make-fixes-18/OTP-15657' into 'rickard/make-fixes-19/OTP-15657'Rickard Green
* rickard/make-fixes-18/OTP-15657: Remove own configured RM make variable
2019-03-06Merge 'rickard/make-fixes-17/OTP-15657' into 'rickard/make-fixes-18/OTP-15657'Rickard Green
* rickard/make-fixes-17/OTP-15657: Remove own configured RM make variable
2019-03-06Remove own configured RM make variableRickard Green
Instead rely on gnu make's pre-defined RM variable which should equal 'rm -f'
2019-03-06Merge branch 'maint'Rickard Green
* maint: Updated OTP version Prepare release
2019-03-06Merge branch 'maint-21' into maintRickard Green
* maint-21: Updated OTP version Prepare release
2019-03-06Merge branch 'maint'Rickard Green
* maint: kernel runtime dependency to erts erts: Add yield via timeout to inet read_packet erts: Don't increase buffer when sctp sndbuf is set erts: Only change inet buffer if not set
2019-03-06Merge branch 'lukas/erts/fix_inet_buffer_auto_adjust/OTP-15651/OTP-15652' ↵Rickard Green
into maint * lukas/erts/fix_inet_buffer_auto_adjust/OTP-15651/OTP-15652: kernel runtime dependency to erts erts: Add yield via timeout to inet read_packet erts: Don't increase buffer when sctp sndbuf is set erts: Only change inet buffer if not set
2019-03-06Slightly optimize is_eq and is_neBjörn Gustavsson
2019-03-06Optimize the '*' operator when multiplying two small integersBjörn Gustavsson
2019-03-06Optimize multiplication in binary matching instructionsBjörn Gustavsson
2019-03-06sys.h: Check for overflow checking aritmethic builtinsBjörn Gustavsson
Let sys.h define HAVE_OVERFLOW_CHECK_BUILTINS if the compiler supports __builtin_mul_overflow() and the other overflow checking builtins. The test is intentionally made in a sys.h and not as a configure test. On Windows, beam_emu.c is always compiled using gcc, but the other files are usually compiled with Microsoft's C compiler. With the test in the header file, HAVE_OVERFLOW_CHECK_BUILTINS will be defined when compiling beam_emu.c.
2019-03-06Eliminate unused i_bs_skip_bits_all2 instructionBjörn Gustavsson
Starting in OTP 19 (in commit 9504c0dd71d0), the compiler emits a test_unit instruction instead of a skip instruction at the end of binary. We can do the same replacement in the loader to get rid of the i_bs_skip_bits_all2 instruction.
2019-03-06Optimize field size calculation on a 64-bit architectureBjörn Gustavsson
On a 64-bit architecture, the size of any binary that would fit in the memory must fit in a small, so we can fail immediately if the size term is not a small.
2019-03-06Reduce code size for binary matching instructionsBjörn Gustavsson
The new compiler required adding support for Y register for all binary matching instructions. That was (intentionally) done in a naive way that simplicated duplicated the entire body of each instruction. Now it's time to be less naive. Rewrite the binary matching instructions using micro instructions. Because some of the binary instructions are huge, that will significantly decrease the size of process_main(). When compiling with clang, a huge process_main() would mess up profile-guide optimization resulting in a significant performance degradation. On my Mac, profile-guide optimzation would decrease the estone benchmark by 100K estones (about 20 percent). This commit gives me back the lost estones.
2019-03-06Deoptimize obsoleted binary matching instructionsBjörn Gustavsson
Mark the obsoleted instructions bs_start_match2, bs_save2, bs_restore2, and bs_context_to_binary as cold. Remove support of a Y operand for bs_save2 and bs_restore2.
2019-03-06Reclassify get_tuple_element with a Y destination as hotBjörn Gustavsson
get_tuple_element with an Y register has become more frequent with the new compiler.
2019-03-06Remove optimization that has become a pessimizationBjörn Gustavsson
The compiler used to generate "move Literal y(Y)" instructions very rarely. Therefore, there was a transformation to avoid having a "move c y" instruction. With the new compiler, "move Literal y(Y)" instructions are relatively frequent, so we will need a "move c y" instruction.
2019-03-06Introduce move_window2 and remove move2_par_xyxyBjörn Gustavsson
2019-03-06Optimize hd/1 and tl/1 in guardsBjörn Gustavsson
2019-03-06bif_instrs.tab: Don't hardcode length of instructionsBjörn Gustavsson
2019-03-06beam_emu.c: Rename the confusing macro GetR() to GetSource()Björn Gustavsson
2019-03-05Prepare releaseErlang/OTP
2019-03-05Merge branch 'lukas/erts/fix_inet_buffer_auto_adjust/OTP-15651/OTP-15652' ↵Erlang/OTP
into maint-21 * lukas/erts/fix_inet_buffer_auto_adjust/OTP-15651/OTP-15652: kernel runtime dependency to erts erts: Add yield via timeout to inet read_packet erts: Don't increase buffer when sctp sndbuf is set erts: Only change inet buffer if not set
2019-03-05Merge branch 'rickard/make-fixes-21/OTP-15551' into maint-21Erlang/OTP
* rickard/make-fixes-21/OTP-15551: Fix install phase in build system
2019-03-04Merge branch 'rickard/make-fixes-21/OTP-15551' into maintRickard Green
* rickard/make-fixes-21/OTP-15551: Fix install phase in build system
2019-03-04Merge 'rickard/make-fixes-21/OTP-15551' into 'rickard/make-fixes-22/OTP-15551'Rickard Green
* rickard/make-fixes-21/OTP-15551: Fix install phase in build system - Install of (mainly) documentation caused rebuild and modification of the source tree even when the source previously had been built. Also otp_patch_apply modified the source tree when updating documentation. This messed up the installation if installation was performed by another user than the user that originally built the system which not is an uncommon scenario. - Some documentation was installed by copying files instead of installing the files which caused faulty access rights on files. - The documentation was not properly updated when applying a patch using otp_patch_apply.
2019-03-04Merge 'rickard/make-fixes-20/OTP-15551' into 'rickard/make-fixes-21/OTP-15551'Rickard Green
* rickard/make-fixes-20/OTP-15551: Fix install phase in build system - Install of (mainly) documentation caused rebuild and modification of the source tree even when the source previously had been built. Also otp_patch_apply modified the source tree when updating documentation. This messed up the installation if installation was performed by another user than the user that originally built the system which not is an uncommon scenario. - Some documentation was installed by copying files instead of installing the files which caused faulty access rights on files. - The documentation was not properly updated when applying a patch using otp_patch_apply.
2019-03-04Merge 'rickard/make-fixes-19/OTP-15551' into 'rickard/make-fixes-20/OTP-15551'Rickard Green
* rickard/make-fixes-19/OTP-15551: Fix install phase in build system - Install of (mainly) documentation caused rebuild and modification of the source tree even when the source previously had been built. Also otp_patch_apply modified the source tree when updating documentation. This messed up the installation if installation was performed by another user than the user that originally built the system which not is an uncommon scenario. - Some documentation was installed by copying files instead of installing the files which caused faulty access rights on files. - The documentation was not properly updated when applying a patch using otp_patch_apply.
2019-03-04Merge 'rickard/make-fixes-18/OTP-15551' into 'rickard/make-fixes-19/OTP-15551'Rickard Green
* rickard/make-fixes-18/OTP-15551: Fix install phase in build system - Install of (mainly) documentation caused rebuild and modification of the source tree even when the source previously had been built. Also otp_patch_apply modified the source tree when updating documentation. This messed up the installation if installation was performed by another user than the user that originally built the system which not is an uncommon scenario. - Some documentation was installed by copying files instead of installing the files which caused faulty access rights on files. - The documentation was not properly updated when applying a patch using otp_patch_apply.
2019-03-04Merge 'rickard/make-fixes-17/OTP-15551' into 'rickard/make-fixes-18/OTP-15551'Rickard Green
* rickard/make-fixes-17/OTP-15551: Fix install phase in build system - Install of (mainly) documentation caused rebuild and modification of the source tree even when the source previously had been built. Also otp_patch_apply modified the source tree when updating documentation. This messed up the installation if installation was performed by another user than the user that originally built the system which not is an uncommon scenario. - Some documentation was installed by copying files instead of installing the files which caused faulty access rights on files. - The documentation was not properly updated when applying a patch using otp_patch_apply.
2019-03-04Fix install phase in build systemRickard Green
- Install of (mainly) documentation caused rebuild and modification of the source tree even when the source previously had been built. Also otp_patch_apply modified the source tree when updating documentation. This messed up the installation if installation was performed by another user than the user that originally built the system which not is an uncommon scenario. - Some documentation was installed by copying files instead of installing the files which caused faulty access rights on files. - The documentation was not properly updated when applying a patch using otp_patch_apply.
2019-03-04Merge pull request #2163 from filmor/float-etf-docSverker Eriksson
Clarify in the docs that (NEW_)FLOAT_EXT must be finite
2019-03-04Merge branch 'maint'Sverker Eriksson
2019-03-04Merge PR-2161 sverker/to_erl-utf8/ERL-854 OTP-15650 into maintSverker Eriksson
* sverker/to_erl-utf8/ERL-854: erts: Remove 7-bit ASCII limitation in to_erl
2019-03-04Merge branch 'bmk/20190301/socket_test_cleanup'Micael Karlberg
2019-03-04Merge branch 'maint'Siri Hansen
2019-03-04Merge branch 'siri/logger/os-timestamp/OTP-15625' into maintSiri Hansen
* siri/logger/os-timestamp/OTP-15625: Update preloaded [logger] Change timestamp from erlang:system_time to os:system_time
2019-03-04Merge branch 'bmk/20190301/net_test/OTP-15635'Micael Karlberg