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| author | Andrew Chow <github@achow101.com> | 2023-04-20 16:11:17 -0400 |
|---|---|---|
| committer | Andrew Chow <github@achow101.com> | 2023-04-20 16:20:15 -0400 |
| commit | 5aa0c82ccd6ceb4a141686fc8658f679de75a787 (patch) | |
| tree | 3f42bb57d23e48a04891778693ecb7395413d6d7 /src/Makefile.test.include | |
| parent | 3a93957a5dc97cb2fd0656d1e2451ebef57204df (diff) | |
| parent | 9f947fc3d4b779f017332135323b34e8f216f613 (diff) | |
Merge bitcoin/bitcoin#25325: Add pool based memory resource
9f947fc3d4b779f017332135323b34e8f216f613 Use PoolAllocator for CCoinsMap (Martin Leitner-Ankerl)
5e4ac5abf54f8e6d6330df0c73119aa0cca4c103 Call ReallocateCache() on each Flush() (Martin Leitner-Ankerl)
1afca6b663bb54022afff193fd9d83856606b189 Add PoolResource fuzzer (Martin Leitner-Ankerl)
e19943f049ed8aa4f32a1d8440a9fbf160367f0f Calculate memory usage correctly for unordered_maps that use PoolAllocator (Martin Leitner-Ankerl)
b8401c3281978beed6198b2f9782b6a8dd35cbd7 Add pool based memory resource & allocator (Martin Leitner-Ankerl)
Pull request description:
A memory resource similar to `std::pmr::unsynchronized_pool_resource`, but optimized for node-based containers. The goal is to be able to cache more coins with the same memory usage, and allocate/deallocate faster.
This is a reimplementation of #22702. The goal was to implement it in a way that is simpler to review & test
* There is now a generic `PoolResource` for allocating/deallocating memory. This has practically the same API as `std::pmr::memory_resource`. (Unfortunately I cannot use std::pmr because libc++ simply doesn't implement that API).
* Thanks to sipa there is now a fuzzer for PoolResource! On a fast machine I ran it for ~770 million executions without finding any issue.
* The estimation of the correct node size is now gone, PoolResource now has multiple pools and just needs to be created large enough to have space for the unordered_map nodes.
I ran benchmarks with #22702, mergebase, and this PR. Frequency locked Intel i7-8700, clang++ 13.0.1 to reindex up to block 690000.
```sh
bitcoind -dbcache=5000 -assumevalid=00000000000000000002a23d6df20eecec15b21d32c75833cce28f113de888b7 -reindex-chainstate -printtoconsole=0 -stopatheight=690000
```
The performance is practically identical with #22702, just 0.4% slower. It's ~21% faster than master:
Note that on cache drops mergebase's memory doesnt go so far down because it does not free the `CCoinsMap` bucket array.
ACKs for top commit:
LarryRuane:
ACK 9f947fc3d4b779f017332135323b34e8f216f613
achow101:
re-ACK 9f947fc3d4b779f017332135323b34e8f216f613
john-moffett:
ACK 9f947fc3d4b779f017332135323b34e8f216f613
jonatack:
re-ACK 9f947fc3d4b779f017332135323b34e8f216f613
Tree-SHA512: 48caf57d1775875a612b54388ef64c53952cd48741cacfe20d89049f2fb35301b5c28e69264b7d659a3ca33d4c714d47bafad6fd547c4075f08b45acc87c0f45
Diffstat (limited to 'src/Makefile.test.include')
| -rw-r--r-- | src/Makefile.test.include | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Makefile.test.include b/src/Makefile.test.include index 15d5a17cec..69965ed1b8 100644 --- a/src/Makefile.test.include +++ b/src/Makefile.test.include @@ -116,6 +116,7 @@ BITCOIN_TESTS =\ test/pmt_tests.cpp \ test/policy_fee_tests.cpp \ test/policyestimator_tests.cpp \ + test/pool_tests.cpp \ test/pow_tests.cpp \ test/prevector_tests.cpp \ test/raii_event_tests.cpp \ @@ -301,6 +302,7 @@ test_fuzz_fuzz_SOURCES = \ test/fuzz/partially_downloaded_block.cpp \ test/fuzz/policy_estimator.cpp \ test/fuzz/policy_estimator_io.cpp \ + test/fuzz/poolresource.cpp \ test/fuzz/pow.cpp \ test/fuzz/prevector.cpp \ test/fuzz/primitives_transaction.cpp \ |