Mario1159/verilator
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60 Commits

Author SHA1 Message Date
Wilson Snyder
5ded80cf79 Fix MacOs Homebrew by removing default LIBS, #2298. 2020-04-30 19:53:21 -04:00
Geza Lore
c52f3349d1
Initial implementation of generic multithreaded tracing (#2269) 
The --trace-threads option can now be used to perform tracing on a
thread separate from the main thread when using VCD tracing (with
--trace-threads 1). For FST tracing --trace-threads can be 1 or 2, and
--trace-fst --trace-threads 1 is the same a what --trace-fst-threads
used to be (which is now deprecated).

Performance numbers on SweRV EH1 CoreMark, clang 6.0.0, Intel i7-3770 @
3.40GHz, IO to ramdisk, with numactl set to schedule threads on different
physical cores. Relative speedup:

--trace     ->  --trace --trace-threads 1      +22%
--trace-fst ->  --trace-fst --trace-threads 1  +38% (as --trace-fst-thread)
--trace-fst ->  --trace-fst --trace-threads 2  +93%

Speed relative to --trace with no threaded tracing:
--trace                                 1.00 x
--trace --trace-threads 1               0.82 x
--trace-fst                             1.79 x
--trace-fst --trace-threads 1           1.23 x
--trace-fst --trace-threads 2           0.87 x

This means FST tracing with 2 extra threads is now faster than single
threaded VCD tracing, and is on par with threaded VCD tracing. You do
pay for it in total compute though as --trace-fst --trace-threads 2 uses
about 240% CPU vs 150% for --trace-fst --trace-threads 1, and 155% for
--trace --trace threads 1. Still for interactive use it should be
helpful with large designs.
 2020-04-21 23:49:07 +01:00
Geza Lore
0f617988d4
Compile fast tracing code with OPT_FAST in single compile mode. (#2245) 
When using the __ALL*.cpp based single compile mode (i.e.: without
VM_PARALLEL_BUILDS), the fast path tracing code used to be included in
__Allsup.cpp, which was compiled with OPT_SLOW, severely harming tracing
performance. We now have __ALLfast.cpp and __ALLslow.cpp instead of
__ALLcls.cpp and __ALLsup.cpp, so we can compile the fast support code
with OPT_FAST as well.
 2020-04-08 21:05:43 -04:00
Wilson Snyder
efaf375887 Configuring with ccache present now defaults to using it; see OBJCACHE in the manual. 2020-04-05 16:10:33 -04:00
Wilson Snyder
9fdb026e95 Add VM_C11 for future need of C++11 2020-04-04 20:48:03 -04:00
Wilson Snyder
1ce360ed5b Add SPDX license identifiers. No functional change. 2020-03-21 11:24:24 -04:00
Wilson Snyder
991d81cd0a Recommend -Os. 2020-02-27 07:46:34 -05:00
Wilson Snyder
f23fe8fd84 Update copyright year. 2020-01-06 18:05:53 -05:00
Wilson Snyder
fe684e8733 Allow redefining VL_PRINTF, bug1598. 2019-12-03 19:12:18 -05:00
Wilson Snyder
2bbb9dccb1 Less verbose ar messages 2019-10-27 11:30:25 -04:00
Wilson Snyder
58a42834a6 Tests: Remove some old makefile rules. 2019-10-08 19:12:33 -04:00
Wilson Snyder
55a25674a2 Add --trace-fst-thread. 2019-05-02 20:33:05 -04:00
Wilson Snyder
8a4aeddbb0 Copyright year update. 2019-01-03 19:17:22 -05:00
Wilson Snyder
49353784fd Fix __Slow files getting compiled with OPT_FAST, bug1370. 2018-11-29 20:35:21 -05:00
Wilson Snyder
4abf5be9ce Detect linker requirements for multithreaded runtime. 2018-05-13 19:47:35 -04:00
Wilson Snyder
8b954dc381 Additional debug prints 2018-04-12 22:00:34 -04:00
Wilson Snyder
8e65d93d6d Copyright year update. No functional change. 2018-01-02 18:05:06 -05:00
Wilson Snyder
f91bac7b31 Rewrite include libraries to support VL_THREADED towards future threading 2017-10-26 21:51:51 -04:00
Wilson Snyder
f9fd634fae Internals: Fix VL_DBG_MSGF va_list corruption in last commit. 2017-10-25 23:01:45 -04:00
Wilson Snyder
b90f383cfe Add --threads option through to makefiles, unadvertised for now. 2017-10-21 16:41:43 -04:00
Wilson Snyder
3c1b82255e Change VL_THREADED to use C++11, and compute and test related GCC flags automatically 2017-10-07 21:29:57 -04:00
Wilson Snyder
778564e63b Compling: Turn on -Wextra when using --enable-ccwarn 2017-09-14 23:28:02 -04:00
Wilson Snyder
074689b5de SystemPerl mode (-sp-deprecated) has been removed. 2017-09-07 21:08:49 -04:00
Wilson Snyder
e6d7e7e329 Version bump 2017-01-15 12:13:13 -05:00
Wilson Snyder
5b6f47cd0f If VM_PARALLEL_BUILDS=1, use OPT_FAST and OPT_SLOW. 2016-09-19 19:31:09 -04:00
Wilson Snyder
6789d247e2 Fix SystemC compiles with VPI, bug1081. 2016-08-23 18:05:29 -04:00
Wilson Snyder
b738d1960a Copyright year update 2016-01-06 20:36:41 -05:00
Wilson Snyder
5e41350588 Fix makefile with --coverage, bug953. 2015-08-12 19:06:15 -04:00
Wilson Snyder
a36b7afba5 Fix VM_PARALLEL_BUILDS broke in 3.868, bug870. 2015-01-17 13:31:27 -05:00
Wilson Snyder
4c91ade61d Copyright year update 2015-01-07 18:25:53 -05:00
Wilson Snyder
68c6f0ff07 Inline C functions that are used only once, msg1525. 2014-11-27 10:52:38 -05:00
Wilson Snyder
27af9b6b06 Fix clang warnings, bug818. 2014-09-11 21:28:53 -04:00
Wilson Snyder
4422de0c6c Copyright year update. 2014-01-06 19:28:57 -05:00
Wilson Snyder
a8bbf7231b Copyright year update. 2013-01-01 09:42:59 -05:00
Wilson Snyder
2396181bc5 Add SYSTEMC_INCLUDE and SYSTEMC_LIBDIR 2012-01-19 20:30:41 -05:00
Wilson Snyder
c2c7c7bd9a Copyright year update 2012-01-15 10:26:28 -05:00
Wilson Snyder
86e3c78776 configure: Test for compiler flags, and remove old config checks 2011-10-12 19:04:57 -04:00
Wilson Snyder
194825f78e Add configure options for cc warnings and extended tests. 2011-10-07 06:48:40 -04:00
Wilson Snyder
bc8c85668a Support coverage in -cc and -sc output modes. 2011-07-28 19:41:05 -04:00
Wilson Snyder
71c1f00ec2 Copyright year update 2011-01-01 18:21:19 -05:00
Wilson Snyder
56c7c1bcc8 Add warning when directory contains spaces, msg378 2010-10-28 09:51:36 -04:00
Wilson Snyder
c4f306c145 Create vltstd to isolate duplicated headers 2010-02-01 21:39:50 -05:00
Wilson Snyder
a15633053b Fix recent verilated.mk.in changes lost by editing non .in 2010-01-30 10:05:21 -05:00
Wilson Snyder
729dfdfed7 Copyright year update 2010-01-05 21:15:06 -05:00
Wilson Snyder
f8cb6979d7 Add Makefile VM_GLOBAL_FAST, listing objects needed to link executables. 
Add additional commentary to makefiles and other output files.
 2009-12-02 21:15:56 -05:00
Wilson Snyder
7df730cedd Verilator is now licensed under LGPL v3 and/or Artistic v2.0. 2009-05-04 17:07:57 -04:00
Wilson Snyder
38669d0a10 Add SYSTEMPERL_INCLUDE envvar to assist RPM builds. 2009-03-28 10:18:53 -04:00
Wilson Snyder
3d06720628 Copyright year update 2009-01-02 11:47:39 -05:00
Wilson Snyder
82a934d6fb Fix missing define to pass coverage down 2008-09-17 11:11:24 -04:00
Wilson Snyder
52912c6329 Convert repository to git from svn. 
- Change .cvsignore to .gitignore
- Remove Id metacomments
- Cleanup whitespace at end of lines
 2008-06-09 21:25:10 -04:00