From b9023ad36f9fd1e2154ff80089906b53b548d891 Mon Sep 17 00:00:00 2001 From: Henrik Nord Date: Tue, 26 Mar 2019 12:14:50 +0100 Subject: Revert "Prepare release" This reverts commit 0118046f9bda8dcf3594184fa439b79267db8017. --- erts/doc/src/notes.xml | 380 ------------------------------------------------- 1 file changed, 380 deletions(-) (limited to 'erts/doc/src/notes.xml') diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml index dbe09dd04b..248b871ca0 100644 --- a/erts/doc/src/notes.xml +++ b/erts/doc/src/notes.xml @@ -31,386 +31,6 @@

This document describes the changes made to the ERTS application.

-
Erts 10.4 - -
Fixed Bugs and Malfunctions - - -

- Do not allocate new bitstring/binary when an empty binary - is appended.

-

- Own Id: OTP-15535 Aux Id: PR-2055

- - -

- Document that process_info(_, current_function) - can return {current_function, undefined} in case - of execution of native code.

-

- Own Id: OTP-15543 Aux Id: PR-2089

- - -

- Fixed bug in ets:select, ets:match and - friends which could cause the table to remain fixated (as - if ets:safe_fixtable had been called) after the - call returned. This could happen for protected - tables if another concurrent running process transfered - table ownership to the process during its - ets:select/match call. Ownership can be transfered using - either ets:give_away or the heir table - option.

-

- Own Id: OTP-15672

- - -

Fixed a Windows-specific bug in file:list_dir/1 - that caused it to misbehave on network shares.

-

- Own Id: OTP-15693

- - -

- Fixed bug when calling enif_whereis_* from NIF - resource destructor. Symtoms could be emulator crash or - hanging scheduler threads.

-

- Own Id: OTP-15694 Aux Id: ERL-863

- - -

Fixed a bug in the error case of apply/3, where - the exception would erroneously have an empty argument - list in some cases.

-

- Own Id: OTP-15698

- - -
- - -
Improvements and New Features - - -

- Add support for Erlang Distribution protocol to split the - payload of large signals into several fragments. This - allows other processes to communicate uninterrupted - during the transmission of these signals.

-

- Own Id: OTP-13397

- - -

- A simple socket API is provided through the socket - module. This is a low level API that does *not* replace - gen_[tcp|udp|sctp]. It is intended to *eventually* - replace the inet driver, but not the high level - gen-modules (gen_tcp, gen_udp and gen_sctp). It also - provides a basic API that facilitates the implementation - of other protocols, than TCP, UDP and SCTP.

-

- Known issues are; No support for the Windows OS - (currently), a small term leakage.

-

- Own Id: OTP-14831

- - -

Added NIF functions enif_set_pid_undefined, - enif_is_pid_undefined - and enif_compare_pids.

-

- Own Id: OTP-15011 Aux Id: PR-2147

- - -

Underutilized memory segments (carriers) can now move - between all allocator instances, rather than just between - instances of the same type, which greatly reduces memory - usage in some scenarios.

-

- Own Id: OTP-15063

- - -

The emulator will now mark free blocks in pooled - carriers with madvise(2) + MADV_FREE (or similar), - letting the OS reclaim the associated physical memory if - necessary.

-

- Own Id: OTP-15075

- - -

- New ERL_NIF_SELECT_CANCEL feature added to - enif_select in order to cancel (or "deselect") a - read or write event on a previously selected file - descriptor.

-

- Own Id: OTP-15095

- - -

- ETS option write_concurrency now also affects and - improves the scalability of ordered_set tables. - The implementation is based on a data structure called - contention adapting search tree, where the lock - granularity adapts to the actual amount of concurrency - exploited by the applications in runtime.

-

- Own Id: OTP-15128

- - -

- Build configuration of the crypto application has - been moved from the erts application into the - crypto application.

-

- Own Id: OTP-15129

- - -

Anonymous functions that don't capture environment are - now created at load-time instead of in run-time.

-

- Own Id: OTP-15195 Aux Id: PR-1812

- - -

- Optimize updates of maps with identical keys and values. - E.g. in the example below the original Map will be reused - as the return of the update.

-

- 1> Map = #{ a => b }. #{ a => b } 2> Map#{ a := b }.

-

- Own Id: OTP-15211 Aux Id: PR-1889

- - -

- Optimize binary:match/2 and - binary:matches/2 to use memchr internally.

-

- Own Id: OTP-15238 Aux Id: PR-1803

- - -

- The runtime system used to terminate when a message - larger than 2 Gb was passed over the distribution. The - send operation will now instead throw a - system_limit exeption.

-

- Own Id: OTP-15261

- - -

- Change the first module called by erts to be names - erl_init instead of otp_ring0. systools in sasl have been - updated to reflect this change.

-

- Own Id: OTP-15336 Aux Id: PR-1825

- - -

- Minor adjustments made to build system for parallel - configure.

-

- Own Id: OTP-15340 Aux Id: OTP-14625

- - -

- Two new NIF interface functions enif_select_read - and enif_select_write. They are similar to - existing enif_select but allow a custom event - message as argument.

-

- Own Id: OTP-15349 Aux Id: PR-2084

- - -

The embedded copy of zlib has been updated from - 1.2.8 to 1.2.11.

-

Note that this copy is only used as a fallback when - the target platform doesn't provide any zlib - development libraries. If your system provides - zlib then it will be used even if it is older than - 1.2.11.

-

- Own Id: OTP-15351 Aux Id: ERL-749

- - -

- New NIF function enif_make_monitor_term.

-

- Own Id: OTP-15362 Aux Id: PR-2127

- - -

Appending lists (The ++ operator) will now yield - properly on large inputs.

-

- Own Id: OTP-15427

- - -

The length/1 BIF used to calculate the length - of the list in one go without yielding, even if the list - was very long. In OTP 22, length/1 will yield when - called with a long lists.

-

- Own Id: OTP-15439

- - -

- Processes sending messages are now punished with a - reduction cost based on message size. That is, a process - sending a large message will yield earlier than before.

-

- Own Id: OTP-15513 Aux Id: ERL-773

- - -

The transitory emulator option +ztma true - (introduced in OTP 21.3) has been removed.

-

- Own Id: OTP-15581 Aux Id: OTP-15580

- - -

In OTP 22, HiPE (the native code compiler) is not - fully functional. The reasons for this are:

-

There are new BEAM instructions for binary matching - that the HiPE native code compiler does not support.

-

The new optimizations in the Erlang compiler create - new combination of instructions that HiPE currently does - not handle correctly.

-

If erlc is invoked with the +native option, and - if any of the new binary matching instructions are used, - the compiler will issue a warning and produce a BEAM file - without native code.

-

- Own Id: OTP-15596

- - -

- Increased the 'creation' value from 2 to 32 bits. The - 'creation' value determines how many times a distributed - node can restart until pids, ports and references may - conflict with such identifiers from an earlier node - incarnation with the same name.

-

- Own Id: OTP-15603

- - -

- The termination behaviour of processes has changed to - allow processes to yield while sending link exit/monitor - down signals.

-

- The erl crash dump as been expanded to now also include - processes that are termenating but have not yet - terminated.

-

- Own Id: OTP-15610

- - -

- The dist messages EXIT, EXIT2 and MONITOR_DOWN have been - updated with new versions that send the reason term as - part of the payload of the message instead of as part of - the control message.

-

- The old versions are still present and can be used when - communicating with nodes that don't support the new - versions.

-

- Own Id: OTP-15611

- - -

- When sending messages, exit, exit2 and monitor down - distributed signals, the process sending will now yield - appropriately.

-

- This means that a terminating process will yield and - possibly be suspended on busy distribution entries while - they are terminating. This means that any memory held by - such processes will not be released until after all - exit/monitor down signals have been sent.

-

- Own Id: OTP-15612

- - -

- All external pids/ports/refs created by - erlang:list_to_pid/port/ref debug functions now compare - equal to any other pid/port/ref with the same number from - that node.

-

- Before this change they compared differently because the - node creation of the pid/port/ref did not compare equal - to any real pid/port/ref creation.

-

- This will mostly effect pids/ports/refs typed in the - shell.

-

- Own Id: OTP-15613

- - -

- A new erlang:dist_ctrl_set_opt(DHandle, - get_size, Value) option has been added. - This option makes it possible to configure the - distribution channel identified by DHandle so that - erlang:dist_ctrl_get_data(DHandle) - also returns the size of the data to pass over the - channel.

-

- Own Id: OTP-15617

- - -

The iolist_size/1 function is now yielding - which means that an Erlang/OTP system will be responsive - even if the applications running on the system frequently - call iolist_size/1 with large iolists.

-

- Own Id: OTP-15631

- - -

- A simple test suite for the net module has been added.

-

- Own Id: OTP-15635

- - -

Added the NIF function enif_term_type, which - helps avoid long sequences of enif_is_xyz by - returning the type of the given term. This is especially - helpful for NIFs that serialize terms, such as JSON - encoders, where it can improve both performance and - readability.

-

- Own Id: OTP-15640

- - -

The last call optimization is now applied to BIFs. - When calling a BIF in the tail position of a function, - the return address and stack frame will now be discarded - before calling the BIF. As consequence of this change, - the immediate caller of a tail-called BIF will no longer - be available in stack backtraces.

-

- Own Id: OTP-15674 Aux Id: PR-2177

- - -

- Fix GC bug where distributed messages in a processes - mailbox would cause extra GCs. This can be very expensive - if there many messages in the mailbox.

-

- Own Id: OTP-15703

- - -
- -
-
Erts 10.3.1
Fixed Bugs and Malfunctions -- cgit v1.2.3