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* ingela/public-key/more-sha2:
public_key: Add additional ASN-1 definitions for DSA SHA2 support
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* bjorn/erts/persistent_terms/OTP-14669:
Implement a tab for persistent terms in crashdump viewer
Add tests of persistent terms for crashdump_viewer
Add a persistent term storage
Refactor releasing of literals
Extend the sharing-preserving routines to optionally copy literals
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Co-authored-by: Siri Hansen <[email protected]>
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Persistent terms are useful for storing Erlang terms that are never
or infrequently updated. They have the following advantages:
* Constant time access. A persistent term is not copied when it is
looked up. The constant factor is lower than for ETS, and no locks
are taken when looking up a term.
* Persistent terms are not copied in garbage collections.
* There is only ever one copy of a persistent term (until it is
deleted). That makes them useful for storing configuration data
that needs to be easily accessible by all processes.
Persistent terms have the following drawbacks:
* Updates are expensive. The hash table holding the keys for the
persistent terms are updated whenever a persistent term is added,
updated or deleted.
* Updating or deleting a persistent term triggers a "global GC", which
will schedule a heap scan of all processes to search the heap of all
processes for the deleted term. If a process still holds a reference
to the deleted term, the process will be garbage collected and the
term copied to the heap of the process. This global GC can make the
system less responsive for some time.
Three BIFs (implemented in C in the emulator) is the entire
interface to the persistent term functionality:
* put(Key, Value) to store a persistent term.
* get(Key) to look up a persistent term.
* erase(Key) to delete a persistent term.
There are also two additional BIFs to obtain information about
persistent terms:
* info() to return a map with information about persistent terms.
* get() to return a list of a {Key,Value} tuples for all persistent
terms. (The values are not copied.)
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'ingela/ssl/controlling-process-allowed-on-transport-accept-socket' into maint
* ingela/ssl/controlling-process-allowed-on-transport-accept-socket:
ssl: controlling_process should be allowed on transpor_accept sockets along with handshake
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with handshake
Fix of commit 68d9244ae33e5eea36250c3bb9ffe046a4db5647
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* ingela/ssl/signature-check/ERL-763/OTP-15415:
ssl: Correct filter function
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* ingela/ssl/deliver-all-data-at-close/ERL-731/OTP-15412:
ssl: Extend check for undelivered data at closing
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This is a timing related bug that alas is hard to test
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* ingela/ssl/bench_SUITE-clean-start:
ssl: Make sure benchmark SUITE has a clean start
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* bjorn/compiler/fix-beam_jump/ERL-759/OTP-15400:
Fix bug when beam_jump removes put_tuple instructions
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* john/erts/minusminus_trapping/OTP-15371:
Optimize operator '--' and yield on large inputs
Inline erts_cmp
Clarify a magical allocation size
Fix trapping in lists:reverse/2
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* ingela/ssl/transport-accept-socket/ERL-756/OTP-15384:
ssl: Return error to user that tries to use a "transport accepted" socket for other purposes than handshaking
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other purposes than handshaking
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ssl: fix timezone-related bug in ssl_pem_cache
OTP-15402
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* hans/ssh/gitignore:
ssh: Add local .gitignore in lib/ssh/test
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* maint-20:
Updated OTP version
Prepare release
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* rickard/internal_ref_cmp/OTP-15399/ERL-751:
Fix erts_internal_ref_number_cmp()
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* rickard/internal_ref_cmp/OTP-15399/ERL-751:
Fix erts_internal_ref_number_cmp()
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`beam_jump` could remove a `put_tuple` instruction when the
tuple would not be used, but it would leave the following
`put` instructions. Make sure they are removed.
https://bugs.erlang.org/browse/ERL-759
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Update profiling.xml
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fix extra parameter in <type>
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Fix docs on gen_event optional callback
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```erlang
Position = integer()
```
Parameter doesn't exist in `read/3,4`
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Introudce erts_queue_release_literals() to queue a literal area to be
released.
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* hans/ssh/convert_to_proper/OTP-15312:
ssh: Enable property_test/ssh_eqc_client_server for PropEr
ssh: Used fixed localhost address
ssh: Fix reporting functions in property_test/ssh_eqc_client_server.erl
ssh: Fix property_test/ssh_eqc_client_info_timing.erl
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PropEr does not support the grouped statem-tests. This commits
calls the grouped functions from the functions supported by PropEr.
Optimized with memoization.
Previously only EQC was supported, but the changes to support PROPER is not
just a wrapper. Since I don't have access to eqc I can't test the changes
and therefore eqc is disabeled.
However, with access to eqc it ought to be quite easy to re-enable eqc by
studying the diff.
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Problem on Darwin, Solaris and FreeBSD with local addresses in 127.1.0.0/8
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Had problems on Darwin, Solaris and FreeBSD.
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* maint-18:
Updated OTP version
Prepare release
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Fix run_erl.c so it compiles on Solaris
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Fix the default implementation of address_please
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* jimdigriz/os_mon/fix_cpu_sup_android/OTP-15387:
Make Erlang's cpu_sup function better on Android
SELinux is another cause of MSG_CTRUNC
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The removal set now uses a red-black tree instead of an array on
large inputs, decreasing runtime complexity from `n*n` to
`n*log(n)`. It will also exit early when there are no more items
left in the removal set, drastically improving performance and
memory use when the items to be removed are present near the head
of the list.
This got a lot more complicated than before as the overhead of
always using a red-black tree was unacceptable when either of the
inputs were small, but this compromise has okay-to-decent
performance regardless of input size.
Co-authored-by: Dmytro Lytovchenko <[email protected]>
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Caught with unit test in ssl_pem_cache_SUITE.
When local timezone is PST (Pacific Standard Time), PEM cache was not evicting
expired entries due to file time converstion was done using
calendar:now_to_datetime, while file modification time is actually in local time.
Use os:system_time() to align with file_info modified time.
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maint-18
* sverker/erts/18/memory-leak-terminating-port/OTP-14609:
erts: Fix memory leak when sending to terminating port
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This greatly increases the performance of '--'/2 which does a lot
of term comparisons.
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memory typo
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