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For applications where measurements show enhanced performance from the use
of a non-default number of emulator scheduler threads, having to accurately
set the right number of scheduler threads across multiple hosts each with
different numbers of logical processors is difficult because the erl +S
option requires absolute numbers of scheduler threads and scheduler threads
online to be specified.
To address this issue, add a +SP option to erl, similar to the existing +S
option but allowing the number of scheduler threads and scheduler threads
online to be set as percentages of logical processors configured and
logical processors available, respectively. For example, "+SP 50:25" sets
the number of scheduler threads to 50% of the logical processors
configured, and the number of scheduler threads online to 25% of the
logical processors available. The +SP option also interacts with any
settings specified with the +S option, such that the combination of options
"+S 4:4 +SP 50:50" (in either order) results in 2 scheduler threads and 2
scheduler threads online.
Add documentation for the +SP option.
Add tests for the +SP option to scheduler_SUITE.
Add tests and documentation for two existing features of the +S option: +S
0:0 resets the scheduler thread count and scheduler threads online count to
their defaults, and specifying negative numbers for +S results in those
values being subtracted from the default values for the host.
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* ia/ssl/concurrerr/OTP-11255:
ssl: Make the ssl manager name for erlang distribution over SSL/TLS relative to the module name of the ssl_manager.
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relative to the module name of the ssl_manager.
This can be beneficial when making tools that rename modules for internal
processing in the tool.
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* tab/tramp_emacs_erl/OTP-11270:
tools: In Emacs it is possible to remotely edit a file, by opening for example /ssh:somehost.com:/path/to/file.erl. In Emacs, the feature that makes this possible, is called TRAMP. When compiling such a file, by typing C-c C-k, an inferior Erlang shell is opened on the remote host, but the compilation expression that was evaluated in the remote Erlang shell was:
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* fredrik/ssl/log_alert_doc/OTP-11271:
ssl: documentation regarding log_alert
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* hb/parsetools/fix_yecc_bug/OTP-11269:
Fix a Yecc bug
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A bug causing Yecc to generate badly formed parsers when encountering
very simple recursive rules has been fixed.
Thanks to Eric Pailleau for reporting the bug.
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In Emacs it is possible to remotely edit a file, by opening for
example /ssh:somehost.com:/path/to/file.erl. In Emacs, the feature
that makes this possible, is called TRAMP. When compiling such a file,
by typing C-c C-k, an inferior Erlang shell is opened on the remote
host, but the compilation expression that was evaluated in the remote
Erlang shell was:
c("/ssh:somehost.com:/path/to/file", [...]).
which resulted in a "no such file or directory" error.
This commit changes the compilation expression into:
c("/path/to/file", [...]).
for files opened remotely via TRAMP. The file name is adjusted
similarly when compiling .yrl and .xrl files.
In a buffer opened remotely, the Elisp function buffer-file-name
returns the full path with TRAMP syntax. In this example it would
be "/ssh:somehost.com:/path/to/file.erl". A new function,
erlang-local-buffer-file-name, has been introduced, which peels off
the TRAMP syntax on remotely opened files, while for locally opened
files, it just calls buffer-file-name.
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* nox/match-context-return/OTP-11247:
Added primary bootstrap
Forbid returning a match context in beam_validator
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* sze/edlin_understand_keys/OTP-11251:
Added primary bootstrap
erts: fixed documentation regarding tty and arrow keys
make edlin understand a few important control keys
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* alexrp/export_edge/OTP-11266:
Export the edge/0 type from the digraph module
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* epa/add_fd_usage_in_rb/OTP-11252:
kernel: sasl: fixed rb.xml docs
Add Fd usage in rb logging
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* pan/bad_async_thread_distribution/OTP-11243:
Create better distribution of files over async threads
Initialize errno properly in win32 efile_may_openfile
Add debug functionality to retrieve async key
OTP-11243
OTP-11265
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The actual port id is used to create a key from the
pointer value which is the ErlDrvPort. To do this
a new driver api function driver_async_port_key is
added and the driver API minor version is updated.
The documentation is updated and the faulty description of
how to spread ports over async threads is updated to
use the new API.
Testcase also added.
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Conflicts:
lib/inets/doc/src/notes.xml
lib/inets/src/http_lib/http_transport.erl
lib/inets/src/inets_app/inets.appup.src
lib/inets/vsn.mk
lib/ssl/doc/src/notes.xml
lib/ssl/src/ssl.appup.src
lib/ssl/src/ssl.erl
lib/ssl/src/ssl_internal.hrl
lib/ssl/src/tls_connection.erl
lib/ssl/vsn.mk
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* lukas/erts/crash_dump_acul/OTP-11264:
erts: Fix print out of acul option in crash dump
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* lukas/erts/efile_undef_behaviour/OTP-11246:
erts: Fix bug in translating ev macros to functions
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Note that this is a fake merge. The bug fix changes files that
are no longer present in maint, and the bug will need to be fixed
in a different way.
* maint-r15:
Prepare release
PER, UPER: Fix encoding/decoding of open types greater than 16K
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* jw/fix-httpd-erl-script-nocache/OTP-11260:
inets: added simple testcase for option erl_script_nocache
Fix httpd config option 'erl_script_nocache'
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* hb/stdlib/correct_fread_spec/OTP-11261:
Correct the specifications of io_lib:fread/2,3
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Thanks to Chris King and Kostis Sagonas for pinpointing the bug.
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* fredrik/inets/ssl/fixup_log_alert_option/OTP-11259:
[inets, ssl]: make log_alert configurable as option in ssl, SSLLogLevel added as option to inets conf file
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Note that this is a fake merge. The bug fix changes files that
are no longer present in maint, and the bug will need to be fixed
in a different way.
* maint-r15:
Prepare release
PER, UPER: Fix encoding/decoding of open types greater than 16K
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* fh/start-all/OTP-11250:
kernel: fix documentation regarding ensure_all_started endtag
Updated primary bootstrap
Add application:ensure_all_started/1-2
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added as option to inets conf file
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* hb/stdlib/dets_bugfix/OTP-11245:
Fix a Dets bug concerning traversal of tables
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* fredrik/ssh/correct_doc_timeout/OTP-11249:
ssh: clarified timeout options
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* hb/stdlib/erl_lint_fix/OTP-11256:
Fix a bug in the linter regarding the 'fun M:F/A' construct
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* lpg/openssh_zlib/OTP-11256:
ssh: added basic connection testcase for openssh zlib
Add openssh_zlib compression type to ssh_transport
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If the fun M:F/A construct was used erroneously the linter could
crash.
Thanks to Mikhail Sobolev for reporting the bug.
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* bjorn/compiler/beam_bool-crash/OTP-11240:
Fix compiler crash for 'B and B' guard
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* fredrik/mnesia/fix_removing_bup/OTP-11241:
mnesia: fix removal of bup file if not mnesia is started
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The bug was introduced in R16B.
Thanks to Manuel Durán Aguete.
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* lukas/erts/efile_undef_behaviour/OTP-11246:
erts: Refactor non-pure macros to functions
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* mh/line-initial-commas/OTP-11242:
Inside parentheses, line-initial commas align with the open parenthesis
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