View Source Runtime_Tools Release Notes
This document describes the changes made to the Runtime_Tools application.
Runtime_Tools 2.1.1
Fixed Bugs and Malfunctions
Fixed a bug where dbg sessions on remote nodes were terminated prematurely.
Own Id: OTP-19188 Aux Id: PR-8692
Runtime_Tools 2.1
Improvements and New Features
The
instrument
module can now track allocations on a per-process or per-port basis.Own Id: OTP-18577 Aux Id: PR-7236
The new function
proc_lib:set_label/1
can be used to add a descriptive term to any process that does not have a registered name. The name will be shown by tools such asc:i/0
,observer
, and it will be included in crash reports produced by processes usinggen_server
,gen_statem
,gen_event
, andgen_fsm
.The label for a process can be retrieved by calling
proc_lib:get_label/1
.Note that those functions work on any process, not only processes that use
proc_lib
.Example:
1> self(). <0.90.0> 2> proc_lib:set_label(my_label). ok 3> i(). . . . <0.90.0> erlang:apply/2 2586 75011 0 my_label c:pinfo/2 51 4> proc_lib:get_label(self()). my_label
Type specs had been added to all
dbg
functions.Own Id: OTP-18859 Aux Id: PR-7782
The documentation has been migrated to use Markdown and ExDoc.
Own Id: OTP-18955 Aux Id: PR-8026
dbg
have been updated to use trace sessions.dbg:session_create/1
,dbg:session/2
, anddbg:session_destroy/1
have been added to work sessions. See the documentation for details.Own Id: OTP-19081 Aux Id: PR-8363
Runtime_Tools 2.0.1
Fixed Bugs and Malfunctions
Fixed issue with fetching port information for observer could crash if port had died.
Own Id: OTP-18868 Aux Id: GH-7735
Fixed some benign compile warnings on Windows.
Own Id: OTP-18895
Runtime_Tools 2.0
Fixed Bugs and Malfunctions
Fixed the type specification for
instrument:carriers/0,1
Own Id: OTP-18499 Aux Id: PR-6946
Improvements and New Features
Add
dbg:tracer(file, Filename)
as a convenient way to trace to a file in clean text.Own Id: OTP-18211 Aux Id: PR-6143
Handling of
on_load
modules during boot has been improved by adding an extra step in the boot order for embedded mode that runs allon_load
handlers, instead of relying on explicit invocation of them, later, when the kernel supervision tree starts.This is mostly a code improvement and OTP internal simplification to avoid future bugs and to simplify code maintenance.
Own Id: OTP-18447
Deprecates
dbg:stop_clear/0
because it is simply a function alias todbg:stop/0
Own Id: OTP-18478 Aux Id: GH-6903
The
instrument
module has been moved fromtools
toruntime_tools
.Own Id: OTP-18487 Aux Id: PR-6829
Removed the experimental
erts_alloc_config
module. It no longer produced good configurations and cannot be fixed in a reasonably backwards compatible manner. It has since OTP 25 been deprecated and scheduled for removal in OTP 26.* POTENTIAL INCOMPATIBILITY *
Own Id: OTP-18549 Aux Id: PR-7105
Runtime_Tools 1.19
Fixed Bugs and Malfunctions
Reading port socket options on macOS and Windows "skips" invalid options.
Own Id: OTP-18012 Aux Id: #5798
Improvements and New Features
dbg:stop/0
now behaves likedbg:stop_clear/0
, clearing all global trace patterns for all functions.Own Id: OTP-17909 Aux Id: ERIERL-760
erts_alloc_config
has been scheduled for removal in OTP 26. It has not produced good configurations for a very long time, and unfortunately it cannot be fixed in a backwards compatible manner.Own Id: OTP-17939
Runtime_Tools 1.18
Fixed Bugs and Malfunctions
Fixed bug in
scheduler:utilization(Seconds)
that would leave thescheduler_wall_time
system flag incorrectly enabled.Own Id: OTP-17800 Aux Id: PR-5425
Improvements and New Features
Add
scheduler:get_sample/0
andget_sample_all/0
. Also clarifyscheduler
module documentation about how it depends on system flagscheduler_wall_time
.Own Id: OTP-17830 Aux Id: GH-5425, PR-5444
Runtime_Tools 1.17
Improvements and New Features
Observer now has a sectiion for new socket.
Own Id: OTP-17346
The dbg docs have been expanded to include the meaning of all the function name acronyms.
Own Id: OTP-17572 Aux Id: PR-5117
Runtime_Tools 1.16.2
Improvements and New Features
The experimental HiPE application has been removed, together with all related functionality in other applications.
* POTENTIAL INCOMPATIBILITY *
Own Id: OTP-16963
Runtime_Tools 1.16.1
Fixed Bugs and Malfunctions
The function
dbg:n/1
used a local fun to set up a tracer on a remote node. This works fine as long as the remote node is running exactly the same version of Erlang/OTP but does not work at all otherwise. This is fixed by exporting the relevant function and by calling this function on the remote node to set up remote tracing.Own Id: OTP-16930 Aux Id: ERL-1371, GH-4396
Runtime_Tools 1.16
Improvements and New Features
Clarify documentation of module 'scheduler'.
Own Id: OTP-17208 Aux Id: GH-4502, PR-4532
Runtime_Tools 1.15.1
Fixed Bugs and Malfunctions
Fixed a crash in
appmon_info
triggered by trying to read port info from a port that was in the process of terminating.appmon_info
is used byobserver
to get information from the observed node.Own Id: OTP-16787 Aux Id: PR-2673
Runtime_Tools 1.15
Improvements and New Features
Improved the presentation of allocations and carriers in the
instrument
module.Own Id: OTP-16327
Minor updates due to the new spawn improvements made.
Own Id: OTP-16368 Aux Id: OTP-15251
Runtime_Tools 1.14.0.1
Fixed Bugs and Malfunctions
The function
dbg:n/1
used a local fun to set up a tracer on a remote node. This works fine as long as the remote node is running exactly the same version of Erlang/OTP but does not work at all otherwise. This is fixed by exporting the relevant function and by calling this function on the remote node to set up remote tracing.Own Id: OTP-16930 Aux Id: ERL-1371, GH-4396
Runtime_Tools 1.14
Improvements and New Features
Fix
dbg:stop_clear/0
to also clear trace events (send
and'receive'
).Own Id: OTP-16044
Runtime_Tools 1.13.3
Improvements and New Features
Minor updates to build system necessary due to move of configuration of
crypto
application.Own Id: OTP-15262 Aux Id: OTP-15129
Runtime_Tools 1.13.2.1
Fixed Bugs and Malfunctions
The function
dbg:n/1
used a local fun to set up a tracer on a remote node. This works fine as long as the remote node is running exactly the same version of Erlang/OTP but does not work at all otherwise. This is fixed by exporting the relevant function and by calling this function on the remote node to set up remote tracing.Own Id: OTP-16930 Aux Id: ERL-1371, GH-4396
Runtime_Tools 1.13.2
Improvements and New Features
Update of systemtap trace example scripts.
Own Id: OTP-15670
Runtime_Tools 1.13.1
Improvements and New Features
Optimize
observer
by using newsystem_info(ets_count)
instead of more expensivelength(ets:all())
.Own Id: OTP-15163 Aux Id: PR-1844
Runtime_Tools 1.13
Improvements and New Features
New utility module
scheduler
which makes it easier to measure scheduler utilization.Own Id: OTP-14904
Runtime_Tools 1.12.5
Fixed Bugs and Malfunctions
system_information:to_file/1
will now use slightly less memory.Own Id: OTP-14816
Runtime_Tools 1.12.4
Improvements and New Features
New family of
erts_alloc
strategies: Age Order First Fit. Similar to "address order", but instead the oldest possible carrier is always chosen for allocation.Own Id: OTP-14917 Aux Id: ERIERL-88
Runtime_Tools 1.12.3
Fixed Bugs and Malfunctions
Removed all old unused files in the documentation.
Own Id: OTP-14475 Aux Id: ERL-409, PR-1493
Runtime_Tools 1.12.2
Improvements and New Features
General Unicode improvements.
Own Id: OTP-14462
Runtime_Tools 1.12.1
Fixed Bugs and Malfunctions
A faulty encoding comment was added when saving trace patterns to file. This is now corrected.
Own Id: OTP-14479
Runtime_Tools 1.12
Fixed Bugs and Malfunctions
Add compile option
-compile(no_native)
in modules withon_load
directive which is not yet supported by HiPE.Own Id: OTP-14316 Aux Id: PR-1390
Improvements and New Features
Miscellaneous updates due to atoms containing arbitrary Unicode characters.
Own Id: OTP-14285
Sockets can now be bound to device (SO_BINDTODEVICE) on platforms where it is supported.
This has been implemented e.g to support VRF-Lite under Linux; see VRF , and GitHub pull request #1326.
Own Id: OTP-14357 Aux Id: PR-1326
Runtime_Tools 1.11.1
Fixed Bugs and Malfunctions
etop erroneously reported the average scheduler utilization since the tool was first started instead of the scheduler utilization since last update. This is now corrected.
Own Id: OTP-14090 Aux Id: seq13232
Runtime_Tools 1.11
Improvements and New Features
Add option
queue_size
to ttb:tracer/2. This sets the maximum queue size for the IP trace driver which is used when tracing to shell and/or{local,File}
.The default value for
queue_size
is specified bydbg
, and it is now changed from 50 to 200.Own Id: OTP-13829 Aux Id: seq13171
The port information page is updated to show more information per port.
Own Id: OTP-13948 Aux Id: ERL-272
Runtime_Tools 1.10.1
Improvements and New Features
Correct some minor documentation issues.
Own Id: OTP-13891
Runtime_Tools 1.10
Fixed Bugs and Malfunctions
Fix bug in dbg:trace_port/2 that could cause the trace ip driver to produce faulty error reports "...(re)selected before stop_select was called for driver trace_ip_drv".
Own Id: OTP-13576 Aux Id: ERL-119
Improvements and New Features
Add microstate accounting
Microstate accounting is a way to track which state the different threads within ERTS are in. The main usage area is to pin point performance bottlenecks by checking which states the threads are in and then from there figuring out why and where to optimize.
Since checking whether microstate accounting is on or off is relatively expensive only a few of the states are enabled by default and more states can be enabled through configure.
There is a convenience module called msacc that has been added to runtime_tools that can assist in gathering and interpreting the data from Microstate accounting.
For more information see erlang:statistics(microstateaccounting, ) and the
msacc
module in runtime_tools.Own Id: OTP-12345
Update observer GUI to support tracing on ports, and to set matchspecs for send/receive. This required some minor bugfixes in runtime_tools/dbg.
Own Id: OTP-13481
Update dbg and ttb to work with a tracer module as tracer and tracing on ports.
Own Id: OTP-13500
Updated dbg to accept the new trace options
monotonic_timestamp
andstrict_monotonic_timestamp
.Own Id: OTP-13502
Introduce LTTng tracing via Erlang tracing.
For LTTng to be enabled OTP needs to be built with configure option
--with-dynamic-trace=lttng
.The dynamic trace module
dyntrace
is now capable to be used as a LTTng sink for Erlang tracing. For a list of all tracepoints, see Runtime Tools User's Guide .This feature also introduces an incompatible change in trace tags. The trace tags
gc_start
andgc_end
has been split intogc_minor_start
,gc_minor_end
andgc_major_start
,gc_major_end
.* POTENTIAL INCOMPATIBILITY *
Own Id: OTP-13532
Runtime_Tools 1.9.3
Improvements and New Features
dbg:trace_client()
now uses a read buffer to speed up reading of trace files.Own Id: OTP-13279
Runtime_Tools 1.9.2
Improvements and New Features
Clarified dbg:stop documentation
Own Id: OTP-13078
Runtime_Tools 1.9.1
Fixed Bugs and Malfunctions
The
trace_file_drv
did not handleEINTR
correct which caused it to fail when the runtime system received a signal.Own Id: OTP-12890 Aux Id: seq12885
Runtime_Tools 1.9
Improvements and New Features
Change license text from Erlang Public License to Apache Public License v2
Own Id: OTP-12845
Runtime_Tools 1.8.16
Fixed Bugs and Malfunctions
The trace process started by
dbg
would not always terminate whendbg:stop/0
was called.Own Id: OTP-12517
Runtime_Tools 1.8.15
Fixed Bugs and Malfunctions
Add
nif_version
toerlang:system_info/1
in order to get the NIF API version of the runtime system in a way similar todriver_version
.Own Id: OTP-12298
Runtime_Tools 1.8.14
Fixed Bugs and Malfunctions
The documentation for the return value of dbg:{stop,stop_clear} functions are now correct (Thanks to Luca Favatella)
Own Id: OTP-11603
Fix DTrace build on Illumos. (Thanks to Ryan Zezeski.)
Own Id: OTP-11622
Do not turn off scheduler_wall_time, as it can interfere with other applications usage.
Own Id: OTP-11693 Aux Id: seq12528
Application upgrade (appup) files are corrected for the following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer, edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets, observer, odbc, os_mon, otp_mibs, parsetools, percept, public_key, reltool, runtime_tools, ssh, syntax_tools, test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
Own Id: OTP-11744
Improvements and New Features
Allow install path to have unicode characters.
Own Id: OTP-10877
The
erts_alloc_config
tool has been updated to produce configurations that better fit todays SMP support in the VM.Own Id: OTP-11662
The
app
-file keyruntime_dependencies
has been introduced.Runtime dependencies have been added to all app-files in OTP. Note that these may not be completely correct during OTP 17, but this is actively being worked on.
The function
system_information:sanity_check/0
will verify all declared runtime dependencies in the system when called.Own Id: OTP-11773
Runtime_Tools 1.8.13
Fixed Bugs and Malfunctions
Observer did not produce correct result when ERTS internal memory allocators had been disabled.
Own Id: OTP-11520
Runtime_Tools 1.8.12
Fixed Bugs and Malfunctions
The process trace flag 'silent' is now allowed in call to dbg:p/2.
Own Id: OTP-11222
Improvements and New Features
Introduced functionality for inspection of system and build configuration.
Own Id: OTP-11196
Runtime_Tools 1.8.11
Fixed Bugs and Malfunctions
Some bugs related to calculation of CPU/scheduler utilization in observer are corrected.
Current function for a process is accepted to be 'undefined' when running hipe.
Own Id: OTP-10894
Improvements and New Features
Erlang source files with non-ASCII characters are now encoded in UTF-8 (instead of latin1).
Own Id: OTP-11041 Aux Id: OTP-10907
Runtime_Tools 1.8.10
Fixed Bugs and Malfunctions
Fix Table Viewer refresh crash on no more existing ets tables (Thanks to Peti Gömori)
Own Id: OTP-10635
Improvements and New Features
User Guides for the dynamic tracing tools dtrace and systemtap have been added to the documentation.
Own Id: OTP-10155
Where necessary a comment stating encoding has been added to Erlang files. The comment is meant to be removed in Erlang/OTP R17B when UTF-8 becomes the default encoding.
Own Id: OTP-10630
Some examples overflowing the width of PDF pages have been corrected.
Own Id: OTP-10665
The backend module appmon_info.erl is moved from appmon application to runtime_tools. This allows appmon to be run from a remote erlang node towards a target node which does not have appmon (and its dependencies) installed, as long as runtime_tools is installed there.
Own Id: OTP-10786
Runtime_Tools 1.8.9
Fixed Bugs and Malfunctions
Change the module-level docs to give complete step-by-step instructions for using the `dyntrace:p()` trace function. (Thanks to Scott Lystig Fritchie)
Own Id: OTP-10141
Add 1024 separate USDT probes to dyntrace.erl and dyntrace.c (Thanks to Scott Lystig Fritchie)
Own Id: OTP-10143
Relocate bodies of DTrace probes to the statically-linked VM.
Due to various operating systems (in both the DTrace and SystemTap worlds) not fully supporting DTrace probes (or SystemTap-compatibility mode probes) in shared libraries, we relocate those probes to the statically-linked virtual machine. This could be seen as pollution of the pristine VM by a (yet) experimental feature. However:
1. This code can be eliminated completely by the C preprocessor. 2. Leaving the probes in the dyntrace NIF shared library simply does not work correctly on too many platforms. Many thanks to Macneil Shonle at Basho for assisting when my RSI-injured fingers gave out. (note: Solaris 10 and FreeBSD 9.0-RELEASE can take a long time to compile)
Own Id: OTP-10189
Runtime_Tools 1.8.8
Improvements and New Features
The DTrace source patch from Scott Lystig Fritchie is integrated in the source tree. Using an emulator with dtrace probe is still not supported for production use, but may be a valuable debugging tool. Configure with --with-dynamic-trace=dtrace (or --with-dynamic-trace=systemtap) to create a build with dtrace probes enabled. See runtime_tools for documentation and examples.
Own Id: OTP-10017
Runtime_Tools 1.8.7
Fixed Bugs and Malfunctions
Earlier dbg:stop only did erlang:trace_delivered and did not flush the trace file driver. Therefore there could still be trace messages that were delivered to the driver (guaranteed by erlang:trace_delivered) but not yet written to the file when dbg:stop returned. Flushing is now added on each node before the dbg process terminates.
Own Id: OTP-9651
File handles created by the trace_file_drv driver was inherited to child processes. This is now corrected.
Own Id: OTP-9658
Improvements and New Features
Erlang/OTP can now be built using parallel make if you limit the number of jobs, for instance using '
make -j6
' or 'make -j10
'. 'make -j
' does not work at the moment because of some missing dependencies.Own Id: OTP-9451
Two new built-in trace pattern aliases have been added: caller_trace (c) and caller_exception_trace (cx). See the dbg:ltp/0 documentation for more info.
Own Id: OTP-9458
Runtime_Tools 1.8.6
Improvements and New Features
Two new built-in trace pattern aliases have been added: caller_trace (c) and caller_exception_trace (cx). See the dbg:ltp/0 documentation for more info.
Own Id: OTP-9458
Runtime_Tools 1.8.5
Improvements and New Features
When a big number of trace patterns are set by inviso the Erlang VM could get unresponsive for several seconds. This is now corrected.
Own Id: OTP-9048 Aux Id: seq11480
Runtime_Tools 1.8.4.1
Fixed Bugs and Malfunctions
Minor corrections and removal of a temporary workaround.
Own Id: OTP-8755 Aux Id: seq-11628, seq-11639
Small fix in inviso_autostart_server.
Own Id: OTP-8783 Aux Id: seq11628
Runtime_Tools 1.8.4
Improvements and New Features
Miscellaneous updates.
Own Id: OTP-8705
Runtime_Tools 1.8.3
Improvements and New Features
Cross compilation improvements and other build system improvements.
Most notable:
- Lots of cross compilation improvements. The old cross compilation support
was more or less non-existing as well as broken. Please, note that the cross
compilation support should still be considered as experimental. Also note
that old cross compilation configurations cannot be used without
modifications. For more information on cross compiling Erlang/OTP see the
$ERL_TOP/INSTALL-CROSS.md
file. - Support for staged install using
DESTDIR. The old
broken
INSTALL_PREFIX
has also been fixed. For more information see the$ERL_TOP/INSTALL.md
file. - Documentation of the
release
target of the topMakefile
. For more information see the$ERL_TOP/INSTALL.md
file. make install
now by default creates relative symbolic links instead of absolute ones. For more information see the$ERL_TOP/INSTALL.md
file.$ERL_TOP/configure --help=recursive
now works and prints help for all applications withconfigure
scripts.- Doing
make install
, ormake release
directly aftermake all
no longer triggers miscellaneous rebuilds. - Existing bootstrap system is now used when doing
make install
, ormake release
without a precedingmake all
. - The
crypto
andssl
applications use the same runtime library path when dynamically linking againstlibssl.so
andlibcrypto.so
. The runtime library search path has also been extended. - The
configure
scripts oferl_interface
andodbc
now search for thread libraries and thread library quirks the same way as ERTS do. - The
configure
script of theodbc
application now also looks for odbc libraries inlib64
andlib/64
directories when building on a 64-bit system. - The
config.h.in
file in theerl_interface
application is now automatically generated in instead of statically updated which reduces the risk ofconfigure
tests without any effect.
(Thanks to Henrik Riomar for suggestions and testing)
(Thanks to Winston Smith for the AVR32-Linux cross configuration and testing)
* POTENTIAL INCOMPATIBILITY *
Own Id: OTP-8323
- Lots of cross compilation improvements. The old cross compilation support
was more or less non-existing as well as broken. Please, note that the cross
compilation support should still be considered as experimental. Also note
that old cross compilation configurations cannot be used without
modifications. For more information on cross compiling Erlang/OTP see the
Cleanups suggested by tidier and modernization of types and specs.
Own Id: OTP-8455
Runtime_Tools 1.8.2
Improvements and New Features
The documentation is now built with open source tools (xsltproc and fop) that exists on most platforms. One visible change is that the frames are removed.
Own Id: OTP-8201
Runtime_Tools 1.8.1
Fixed Bugs and Malfunctions
Makefile.in
has been updated to use the LDFLAGS environment variable (if set). (Thanks to Davide Pesavento.)Own Id: OTP-8157
Runtime_Tools 1.8
Improvements and New Features
etop
would crash if the emulator's custom allocators had been turned off (e.g. using the+Meamin
option).Own Id: OTP-7519
The copyright notices have been updated.
Own Id: OTP-7851
Now, dbg:p/2 accepts {X,Y,Z} process specification as stated in the documentation. It also now accepts "<X.Y.Z>" like from erlang:pid_to_list/1.
There is now a pre-saved match spec in dbg that saves a lot of typing. Use dbg:ltp/0 to find out more...
Own Id: OTP-7867
Runtime_Tools 1.7.3
Fixed Bugs and Malfunctions
Fixed a timestamp problem where some events could be sent out of order. Minor fixes to presentation of data.
Own Id: OTP-7544 Aux Id: otp-7442
Runtime_Tools 1.7.2
Fixed Bugs and Malfunctions
etop
now collects process information faster and more reliably than before (a race condition reported by Igor Goryachev has been eliminated).Trace messages could be lost when
ttb:stop/0
was called.Own Id: OTP-7164
Runtime_Tools 1.7.1
Improvements and New Features
The documentation has been updated so as to reflect the last updates of the Erlang shell as well as the minor modifications of the control sequence
p
of theio_lib
module.Superfluous empty lines have been removed from code examples and from Erlang shell examples.
Own Id: OTP-6944 Aux Id: OTP-6554, OTP-6911
Memory management improvements especially for the runtime system with SMP support:
- The runtime system with SMP support can now use multiple, thread specific instances of most memory allocators. This improves performance since it reduces lock contention in the memory allocators. It may however increase memory usage for some applications. The runtime system with SMP support will by default enable this feature on most allocators. The amount of instances used can be configured.
driver_alloc()
,driver_realloc()
, anddriver_free()
now use their own erts specific memory allocator instead of the defaultmalloc()
implementation on the system.- The default configuration of some allocators have been changed to fit applications that use much memory better.
- Some new
erts_alloc
configuration parameters have been added. erts_alloc_config
has been modified to be able to create configurations suitable for multiple instances of allocators.- The returned value from
erlang:system_info({allocator, Alloc})
has been changed. This since an allocator may now run in multiple instances.
If you for some reason want the memory allocators to be configured as before, you can pass the
+Mea r11b
command-line argument toerl
.For more information see the
erts_alloc(3)
, them:erts_alloc_config
, and theerlang
documentation.* POTENTIAL INCOMPATIBILITY *
Own Id: OTP-7100
Runtime_Tools 1.7
Fixed Bugs and Malfunctions
dbg
could leave traced processes in a suspended state if the tracer process was killed with exit reasonkill
.erlang:suspend_process/2
has been introduced which accepts an option list as second argument. For more information see theerlang
documentation.Processes suspended via
erlang:suspend_process/[1,2]
will now be automatically resumed if the process that callederlang:suspend_process/[1,2]
terminates.Processes could previously be suspended by one process and resumed by another unless someone was tracing the suspendee. This is not possible anymore. The process resuming a process has to be the one that suspended it.
* POTENTIAL INCOMPATIBILITY *
Own Id: OTP-6946
Improvements and New Features
The undocumented and unsupported function
dbg:tracer/1
has been removed. The undocumented, unsupported, and broken functiondbg:i/1
has been removed.Own Id: OTP-6939
Runtime_Tools 1.6.8
Fixed Bugs and Malfunctions
In this release the following has been fixed and enhanced: Autostart: It is now possible to configure modules that shall be loaded by the autostart mechanism. This because it is not certain that all application systems make use of the OTP boot script to set up paths to all Erlang modules. Runtime_tools/Inviso: A bug in the fetch_log functionality has been fixed. Further a bug that was (supposedly) fixed in a previous patch concerning meta-tracer write_ti has been fixed (again) in this patch. A bug in inviso_as_lib making remote autostart config file updates fail has been fixed. Inviso: inviso_tool has been given a flush API.
Own Id: OTP-6918
Runtime_Tools 1.6.7
Improvements and New Features
The following bugs/improvements have been done: Internal interworking between inviso_rt and inviso_rt_meta. The call function used by inviso_rt to call inviso_rt_meta is now protected with a monitor. Inviso_rt_meta now includes the timestamp of the incoming meta trace message when calling the call-callback. (Makes it possible to add a "better" timestamp to the ti-file.) Bug in inviso_tool making it not remove trace patterns when terminating. Bug in internal function h_start_session making inviso_tool crash if there were no active nodes to start the session on. The user-inviso_tool and inviso API-inviso control component request/response gen_server protocols had default time-out. Since many trace operations can be time consuming, a longer time-out is necessary. Improved overload protection. It is now possible to let the overload protection renew itself (e.g after an exit from an external overload protector). Inviso_rt_meta now fully uses the exception_trace match spec action term. Run Trace Case API (as in contrast to activate and deactivate trace case APIs) in inviso_tool. Flush trace-port API added to inviso. Get_session_data API added to inviso_tool. Improved inviso_tool:stop making it possible to name nodes which shall not have their trace patterns removed when inviso_tool terminates. Bug in handling of writing multiple ti-entries if returned from a call/return_from call-back in inviso_rt_meta Process trace flags are no longer explicitly removed by the inviso_tool when it terminates. Not necessary. Inviso_tool get_autostart_data adopted to standard autostarter.
* INCOMPATIBILITY with Meta trace call-backs are called with different arguments now. *
Own Id: OTP-6881
Runtime_Tools 1.6.6
Fixed Bugs and Malfunctions
A bug in inviso_rt_meta caused an ETS table containing information on initiated (init_tpm) functions to be lost when suspending tracing. Further an enhancement to inviso_rt has been introduced making it possible to activate process trace flags based on globally registered names. It is then not an error to activate a global name on a node where the name does not reside. The process count in the return value will simply be set to zero (hence exactly one node in the NodeResult part of the return value will indicate one matching process found). A bug was found in fetch_log API. At the same time the fetch_log functionality was enhanced to also offer flow control making fetcher processes send chunks of transferred file data at a slower pace.
Own Id: OTP-6703
Improvements and New Features
Minor Makefile changes.
Own Id: OTP-6689 Aux Id: OTP-6742
An experimental tool called
erts_alloc_config
has been added.erts_alloc_config
is intended to be used to aid creation of anerts_alloc
configuration that is suitable for a limited number of runtime scenarios. For more information see them:erts_alloc_config
documentation.Own Id: OTP-6700
Runtime_Tools 1.6.5
Improvements and New Features
Misc improvements.
Own Id: OTP-6576
Runtime_Tools 1.6.4
Improvements and New Features
This application has been updated to eliminate warnings by Dialyzer.
Own Id: OTP-6551
Runtime_Tools 1.6.3
Fixed Bugs and Malfunctions
This ticket includes several improvements and bugfixes to both runtime_tools and inviso. The overload mechanism can now also react to incoming messages. This is useful if an external overload watch-dog is used. Some improvements of variable bindings has been done to the default autostart mechanism - inviso_autostart_server. Autostart "jobs" can now be done in parallel, allowing for some jobs to hang waiting for some parts of the traced system to become ready before proceeding. Previously when using named meta-match-specs (tpm_ms) ending up with zero match-specs still kept the meta trace pattern active. This caused zero match-specs to be equal to unlimited meta tracing on that particular function. If the internal database becomes empty of meta match specs, meta trace pattern is removed for that function. Standard public loop data in the inviso runtime meta tracer process is now extended to a 2-tuple. The functions ctp/1 and ctpl/1 are added making it possible to remove trace patterns for a list of functions rather than one by one. Inviso_rt_meta will now accept a list of binaries to be output into the trace information file, in additions to a single binary. Further it is also possible to make own output to the trace information file using the write_ti/1 function. An error was discovered in inviso_rt making the inviso_rt_meta remain rather than terminate if the inviso_rt terminated due to "running alone" (not allowed to run without a control component). A new tool, inviso_tool, has been added to the inviso application.
Own Id: OTP-6426
Runtime_Tools 1.6.2
Fixed Bugs and Malfunctions
Several minor bugs and race conditions eliminated in the runtime_tools and observer applications.
Own Id: OTP-6265
Runtime_Tools 1.6.1
Improvements and New Features
There are new BIFs
erlang:spawn_monitor/1,3
, and the new optionmonitor
forspawn_opt/2,3,4,5
.The
observer_backend
module has been updated to handle the new BIFs.Own Id: OTP-6281
Runtime_Tools 1.6
Added the runtime part of the Inviso tracer, see the new Inviso application for more information. This also meant adding an application callback module and an application supervisor tree for Runtime_Tools.
Runtime_Tools 1.5.1.1
Improvements and New Features
The
dbg
manual page has been updated with information about how to avoid deadlock when tracing.Own Id: OTP-5373 Aux Id: seq9729
Runtime_Tools 1.5.1
Fixed Bugs and Malfunctions
Linked in drivers in the Crypto, and Asn1 applications are now compiled with the
-D_THREAD_SAFE
and-D_REENTRANT
switches on unix when the emulator has thread support enabled.Linked in drivers on MacOSX are not compiled with the undocumented
-lbundle1.o
switch anymore. Thanks to Sean Hinde who sent us a patch.Linked in driver in Crypto, and port programs in SSL, now compiles on OSF1.
Minor
Makefile
improvements in Runtime_Tools.Own Id: OTP-5346