TheCloud/dwarfs
1
0
Fork 0
mirror of https://github.com/mhx/dwarfs.git synced 2025-08-03 17:56:12 -04:00
Code Issues Packages Projects Releases Wiki Activity

refactor(block_cache): phmap is as least as fast as F14 (and smaller)

Browse Source
This commit is contained in:
Marcus Holland-Moritz 2025-04-14 08:50:17 +02:00
parent 9cdfaffee6
commit 43e42994cb
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/reader/internal/block_cache.cpp
View File

@ -44,10 +44,11 @@
#include <fmt/format.h>
#include <folly/container/EvictingCacheMap.h>
#include <folly/container/F14Map.h>
#include <folly/stats/Histogram.h>
#include <folly/system/ThreadName.h>
#include <parallel_hashmap/phmap.h>
#include <dwarfs/logger.h>
#include <dwarfs/mmif.h>
#include <dwarfs/performance_monitor.h>
@ -783,18 +784,19 @@ class block_cache_ final : public block_cache::impl {
using lru_type =
folly::EvictingCacheMap<size_t, std::shared_ptr<cached_block>>;
template <typename Key, typename Value>
using fast_map_type = phmap::flat_hash_map<Key, Value>;
mutable std::mutex mx_;
mutable lru_type cache_;
mutable folly::F14FastMap<size_t,
std::vector<std::weak_ptr<block_request_set>>>
mutable fast_map_type<size_t, std::vector<std::weak_ptr<block_request_set>>>
active_;
std::thread tidy_thread_;
std::condition_variable tidy_cond_;
bool tidy_running_{false};
mutable std::mutex mx_dec_;
mutable folly::F14FastMap<size_t, std::weak_ptr<block_request_set>>
mutable fast_map_type<size_t, std::weak_ptr<block_request_set>>
decompressing_;
mutable std::atomic<size_t> blocks_created_{0};