| Age | Commit message (Collapse) | Author |
|---|
|
Wow, that could have been embarrassing.
|
|
with more consistent naming.
|
|
into maint-21
* john/erts/spectre-configure-flag-otp_20/OTP-15430/ERIERL-237:
Allow disabling retpoline in interpreter loop
Add a ./configure flag for spectre mitigation
|
|
* maint:
Allow disabling retpoline in interpreter loop
Add a ./configure flag for spectre mitigation
|
|
into maint
* john/erts/spectre-configure-flag-otp_20/OTP-15430/ERIERL-237:
Allow disabling retpoline in interpreter loop
Add a ./configure flag for spectre mitigation
|
|
|
|
AGAIN
* sverker/erts/atomics-counters/OTP-13468:
erts: Add counters:put/3
|
|
Set drv_use_singleton.fd_stop_select to -2 in start()
as it's only used by driver_SUITE:driver_select_use.
|
|
bmk/20180918/nififying_inet/OTP-14831
|
|
|
|
to better detect an actual missing ready_input event
on slow machines (valgrind)
and without wasting time with long sleep on fast machines.
|
|
john/erts/spectre-configure-flag-otp_20/OTP-15430/ERIERL-237
* john/erts/spectre-configure-flag/OTP-15430/ERIERL-237:
Allow disabling retpoline in interpreter loop
Add a ./configure flag for spectre mitigation
|
|
We only do this when the user has explicitly told us it's okay to
partially disable mitigation (spectre-mitigation=incomplete). The
macro is inert if it isn't.
|
|
|
|
Also fix erts_debug:get_internal_status(node_and_dist_references)
for catree to also search route node keys for offheap stuff.
|
|
to be usable by other application tests.
|
|
with some code moving and removed obsolete comments.
|
|
Attempt to fix the the api_to_connect_tcp[4|6] test cases.
On some linux versions (Ubuntu 14), the backlog seems to not
work. No luck...
OTP-14831
|
|
* john/erts/plusplus-trapping/OTP-15427:
Don't use too many reductions in lists:reverse/2
Make '++'/2 trapping
|
|
* maint:
Fix broken assertion on monitor release
Avoid closing files in gc/monitor callbacks
|
|
* john/erts/defer-orphan-file-close/OTP-15421/ERIERL-261:
Fix broken assertion on monitor release
Avoid closing files in gc/monitor callbacks
|
|
Added a socket close (actually shutdown(write)) for recv and
recvmsg for tcp.
OTP-14831
|
|
|
|
* sverker/erts/atomics-counters/OTP-13468:
erts: Add new module 'counters'
erts: Add new module 'atomics'
|
|
|
|
|
|
We sometimes bump the refc without messing with the table, which
means that we sometimes decrement it while in the table, causing
the old assertion to fail.
The property we want to check is that neither end of the monitor is
present in the table when the monitor is deleted.
|
|
Closing files in these callbacks could block scheduler progress
and cause major system instability. We now defer these operations
to a dedicated process instead.
This process may in turn block forever and prevent further orphaned
files from being closed, but it will keep the emulator itself from
misbehaving.
|
|
|
|
|
|
* maint:
Remove --/2 from dirty BIF tests
|
|
Now that it traps, --/2 would hang forever when building under
--enable-dirty-schedulers-test.
|
|
* sverker/erts/ordered_set-select-improvements/OTP-15325:
erts: Tidy some ordered_set iteration code
erts: Fix bug for catree iteration
|
|
Added ping-pong test cases for UDP, small and medium, using
the sendto/recvfrom and sendmsg/recvmsg functions.
OTP-14831
|
|
When type = dgram, the functions recvfrom and recvmsg did not
properly handle socket close, cuaing the caller to hang
indefinitely.
OTP-14831
|
|
* maint:
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
Conflicts:
erts/emulator/Makefile.in
erts/emulator/beam/erl_process_dump.c
erts/preloaded/ebin/erts_internal.beam
erts/preloaded/ebin/init.beam
lib/sasl/src/systools_make.erl
|
|
* 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
|
|
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.)
|
|
Some minor restructure of the ping-pong test cases in order
to not have duplicate the send and receive fun's.
OTP-14831
|
|
Added New ping-pong test cases using the sendmsg and recvmsg functions.
OTP-14831
|
|
When the send buffer was full (eagain), the send failed
(with the rather useless return of {ok, -1}) instead of
returning {error, eagain}.
OTP-14831
|
|
Make it possible to open a file and send debug printouts to
(instead of stdout) for debug printouts from the nif-code.
OTP-14831
|
|
* john/erts/OTP-20.3.8/minusminus_trapping/OTP-15371:
Optimize operator '--' and yield on large inputs
|
|
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]>
|
|
The ping-pong test case(s) now initiates the socket
buffers before they are connected (server: before listen is
called on the listen socket and client: before connect is called).
Also, we now include a length indicator in the messages, so
that we know how much to read.
OTP-14831
|
|
An "accepted" socket will inherit the parent (listen) socket's
buffer sizes (rBufSz, rCtrlSz and wCtrlSz).
OTP-14831
|
|
A dirty scheduler is an un-managed thread so we need to
lock the msacc state on those.
|
|
* maint:
Optimize operator '--' and yield on large inputs
Inline erts_cmp
Clarify a magical allocation size
Fix trapping in lists:reverse/2
|
|
* 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
|
|
We got some kind of send hang...
|
