* Reland x2: Make GetDefaultEventEngine return a shared_ptr
* remove thread leak from NativeDNSResolver
This is not going to work for resolvers that support cancellation.
* give resolvers bounded lifetimes
Some resolver own EventEngines. EventEngines cannot run off the end of
the process since they have unjoined threads (problematic in a small set
of environments). This gives resolvers bounded lifetimes, and allows
replacement of resolvers without ASAN issues of deleting resolvers in
active use (occurs in tests).
* fix
* fix windows
* fix surface init test
* fix
* sanitize
* use after move
* the test must wait for the callback to be destroyed
* windows fix: delete the resolver on iomgr shutdown, not before
* Make TimerManager threads non-joinable
On gRPC shutdown, any unjoined TimerManager threads will cause TSAN to
detect thread leaks. This fix resolves issues I saw in end2end test
shutdown in another PR, where a single timer manager thread was always
alive after the test ended.
The long-term solution is to integrate the new ThreadPool here, but this
unblocks me for now.
* backport fix
* fix
* shared_ptr<EventEngine> in EventEngine benchmarks
* [WIP] EventEngine::Run microbenchmarks
* Add fanout impl and fix tracking of time spent doing work in threads
* tune down benchmarks; fix fanout counting logic.
* tune down closure fanout tests
* format
* odr
* reviewer feedback
* unify some fanout logic; add a large-AnyInvocable test
lambdas that take an allocation are about 10x slower
* reviewer feedback
* fix invalid vector access
* rm DNS
* format
* copy params for each lambda callback
This fixes segfaults when we cannot ensure all callbacks are complete
before exiting the test.
* s/promise/Notification/g bm_exec_ctx
* ODR and leak
* fix division by zero
* fix
* WorkQueue
* weaken the large obj stress test for Windows; documentation
* update comment
* Add WorkQueue microbenchmark. Results below ...
------------------------------------------------------------------------------------------
Benchmark Time CPU Iterations UserCounters...
------------------------------------------------------------------------------------------
BM_WorkQueueIntptrPopFront/1 297 ns 297 ns 2343500 items_per_second=3.3679M/s
BM_WorkQueueIntptrPopFront/8 7022 ns 7020 ns 99356 items_per_second=1.13956M/s
BM_WorkQueueIntptrPopFront/64 59606 ns 59590 ns 11770 items_per_second=1074k/s
BM_WorkQueueIntptrPopFront/512 477867 ns 477748 ns 1469 items_per_second=1071.7k/s
BM_WorkQueueIntptrPopFront/4096 3815786 ns 3814925 ns 184 items_per_second=1073.68k/s
I0902 19:05:22.138022069 12 test_config.cc:194] TestEnvironment ends
================================================================================
* use int64_t for times. 0 performance change
------------------------------------------------------------------------------------------
Benchmark Time CPU Iterations UserCounters...
------------------------------------------------------------------------------------------
BM_WorkQueueIntptrPopFront/1 277 ns 277 ns 2450292 items_per_second=3.60967M/s
BM_WorkQueueIntptrPopFront/8 6718 ns 6716 ns 105497 items_per_second=1.19126M/s
BM_WorkQueueIntptrPopFront/64 56428 ns 56401 ns 12268 items_per_second=1.13474M/s
BM_WorkQueueIntptrPopFront/512 458953 ns 458817 ns 1550 items_per_second=1.11591M/s
BM_WorkQueueIntptrPopFront/4096 3686357 ns 3685120 ns 191 items_per_second=1.1115M/s
I0902 19:25:31.549382949 12 test_config.cc:194] TestEnvironment ends
================================================================================
* add PopBack tests: same performance profile exactly
* use Mutex instead of Spinlock
It's safer, and so far equally performant in benchmarks of opt builds
* add deque test for comparison. It is faster on all tests.
* Add sparsely-populated multi-threaded benchmarks.
* fix
* fix
* refactor to help thread safety analysis
* Specialize WorkQueue for Closure*s and AnyInvocables
* remove unused callback storage
* add single-threaded benchmark for closure vs invocable
* sanitize
* missing include
* move bm_work_queue to microbenchmarks so it isn't exported
* s/workqueue/work_queue/g
* use nullptr instead of optionals for popped closures
* reviewer test suggestion
* private things are private
* add a work_queue fuzzer
Ran for 10 minutes @ 42 jobs @ 42 workers. Zero failures.
Checked in a selection of 100 good seeds after merging the thousands of
results.
* fix
* fix header guards
* nuke the corpora
* feedback
* sanitize
* Timestamp::Now
* fix
* fuzzers do not work on windows
* windows does not like multithreaded benchmark tests
Without this, `grpc_cli` will connect, send the metadata and then completely stall until it is killed leading to believe it is the server that is stalled instead of `grpc_cli` that won't send the message.
* Revert "Revert "XdsClient: add unit test and fix watcher notification bugs (#30823)" (#30942)"
This reverts commit 6d2c4a8314.
* use GRPC_CUSTOM_JSONUTIL macro for JsonPrintOptions
This adds a unit test for XdsClient and fixes several watcher-notification bugs found in the process. Specifically:
- When an ADS stream fails or an xDS channel reports a connectivity failure, report an error only to the watchers for resources being subscribed to on that particular channel, not to watchers on other channels.
- Cache the error status for the channel, so that if a new watcher is started after the channel reports the error, we can immediately report that error to the new watcher.
- If a resource is NACKed and has not been previously cached, or does not exist, report that fact to any new watcher that may be started later.
- If a resource in an ADS response is unparseable but is wrapped in a `Resource` wrapper, we do know its name, so record the validation failure in the cache and report it to the watchers.
Co-authored-by: markdroth <markdroth@users.noreply.github.com>
AJ Heller