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perf(flamegraph): regenerate artifact after round-2 fixes and index load-factor win #146

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Merged
div0rce merged 1 commit into from
Jun 25, 2026
Merged

perf(flamegraph): regenerate artifact after round-2 fixes and index load-factor win #146

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10 changes: 5 additions & 5 deletions results/flamegraph.svg
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44 changes: 22 additions & 22 deletions results/flamegraph.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -8,20 +8,20 @@ Perf: perf version 6.19.14-400.asahi.fc44.aarch64
Perf paranoid: 2
Build type: Release
Provenance version: 1
Git commit (informational): 1094c84
Source digest: sha256:4ea656895e7d29ccd2130b6f9aff49f7eb9c7c18608ccf543366275873eff711
Git commit (informational): ebc1c95
Source digest: sha256:201221d4d6344c0dd55d1f497b67337503e2876208e65dfd5db4f450f568226d
Source digest scope: flamegraph-benchmark
Dirty inputs: no
Generated output: results/flamegraph.svg
Date: 2026-06-24T23:20:24Z
Date: 2026-06-25T01:57:35Z
Benchmark binary: build/flamegraph/qsl-bench
Dataset: qsl-bench profile workload (warm bounded order flow, 5s)
Call graph: fp
Record event: cpu-clock
Sample freq: 4000 Hz
Sample count (folded total): 19997
Sample count (perf record est.): 19997
Folded stacks: 316
Sample count (folded total): 19991
Sample count (perf record est.): 19991
Folded stacks: 338
Minimum samples for hot profile: 200
Insufficient samples: no
Record status: 0
Expand All @@ -35,21 +35,21 @@ investigation. Frame width is proportional to on-CPU samples, not wall-clock
latency or throughput, and is hardware/kernel/compiler/build dependent.

Top 15 folded stacks (count stack):
2093 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::cancel(unsigned int, unsigned long);qsl::engine::OrderBook::cancel(unsigned long);decltype(auto) qsl::engine::OrderBook::dispatch_storage<qsl::engine::OrderBook::cancel(unsigned long)::{lambda()#1}, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::IntrusiveStore&)#1}, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::ContiguousStore&)#1}>(qsl::engine::OrderBook::cancel(unsigned long)::{lambda()#1}&&, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::IntrusiveStore&)#1}&&, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::ContiguousStore&)#1}&&) [clone .isra.0]
2001 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::match_baseline(qsl::core::Side, qsl::engine::OrderBook::MatchContext&)
1869 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::rest(unsigned long, qsl::core::Side, long, unsigned int);qsl::engine::OrderBook::level_for[abi:cxx11](qsl::core::Side, long)
961 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::contains(unsigned long) const
686 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce)
595 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce)
555 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::cancel(unsigned int, unsigned long);qsl::engine::OrderBook::cancel(unsigned long);decltype(auto) qsl::engine::OrderBook::dispatch_storage<qsl::engine::OrderBook::cancel(unsigned long)::{lambda()#1}, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::IntrusiveStore&)#1}, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::ContiguousStore&)#1}>(qsl::engine::OrderBook::cancel(unsigned long)::{lambda()#1}&&, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::IntrusiveStore&)#1}&&, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::ContiguousStore&)#1}&&) [clone .isra.0];qsl::engine::OrderBook::erase_resting_order(qsl::engine::OrderBook::Locator const&)
544 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::match_baseline(qsl::core::Side, qsl::engine::OrderBook::MatchContext&);std::_Rb_tree_rebalance_for_erase(std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)
520 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::rest(unsigned long, qsl::core::Side, long, unsigned int);std::__detail::_Map_base<unsigned long, std::pair<unsigned long const, qsl::engine::OrderBook::Locator>, std::pmr::polymorphic_allocator<std::pair<unsigned long const, qsl::engine::OrderBook::Locator> >, std::__detail::_Select1st, std::equal_to<unsigned long>, std::hash<unsigned long>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>::operator[](unsigned long const&)
519 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main
472 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::rest(unsigned long, qsl::core::Side, long, unsigned int);qsl::engine::OrderBook::level_for[abi:cxx11](qsl::core::Side, long);std::_Rb_tree_insert_and_rebalance(bool, std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)
354 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::cancel(unsigned int, unsigned long)
349 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::match_baseline(qsl::core::Side, qsl::engine::OrderBook::MatchContext&);qsl::engine::OrderBook::fill_front_order(std::__cxx11::list<qsl::engine::Order, std::pmr::polymorphic_allocator<qsl::engine::Order> >&, long, qsl::engine::OrderBook::MatchContext&)
314 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::match_baseline(qsl::core::Side, qsl::engine::OrderBook::MatchContext&);cfree@GLIBC_2.17
253 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::match_baseline(qsl::core::Side, qsl::engine::OrderBook::MatchContext&);std::_Hashtable<unsigned long, std::pair<unsigned long const, qsl::engine::OrderBook::Locator>, std::pmr::polymorphic_allocator<std::pair<unsigned long const, qsl::engine::OrderBook::Locator> >, std::__detail::_Select1st, std::equal_to<unsigned long>, std::hash<unsigned long>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_erase(unsigned long, std::__detail::_Hash_node_base*, std::__detail::_Hash_node<std::pair<unsigned long const, qsl::engine::OrderBook::Locator>, false>*)
2385 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::match_baseline(qsl::core::Side, qsl::engine::OrderBook::MatchContext&)
2076 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::rest(unsigned long, qsl::core::Side, long, unsigned int);qsl::engine::OrderBook::level_for[abi:cxx11](qsl::core::Side, long)
862 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce)
820 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::cancel(unsigned int, unsigned long);qsl::engine::OrderBook::cancel(unsigned long);decltype(auto) qsl::engine::OrderBook::dispatch_storage<qsl::engine::OrderBook::cancel(unsigned long)::{lambda()#1}, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::IntrusiveStore&)#1}, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::ContiguousStore&)#1}>(qsl::engine::OrderBook::cancel(unsigned long)::{lambda()#1}&&, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::IntrusiveStore&)#1}&&, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::ContiguousStore&)#1}&&) [clone .isra.0]
677 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::cancel(unsigned int, unsigned long);qsl::engine::OrderBook::cancel(unsigned long);decltype(auto) qsl::engine::OrderBook::dispatch_storage<qsl::engine::OrderBook::cancel(unsigned long)::{lambda()#1}, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::IntrusiveStore&)#1}, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::ContiguousStore&)#1}>(qsl::engine::OrderBook::cancel(unsigned long)::{lambda()#1}&&, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::IntrusiveStore&)#1}&&, qsl::engine::OrderBook::cancel(unsigned long)::{lambda(qsl::engine::OrderBook::ContiguousStore&)#1}&&) [clone .isra.0];qsl::engine::OrderBook::erase_resting_order(qsl::engine::OrderBook::Locator const&)
676 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce)
630 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::match_baseline(qsl::core::Side, qsl::engine::OrderBook::MatchContext&);std::_Rb_tree_rebalance_for_erase(std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)
614 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main
542 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::rest(unsigned long, qsl::core::Side, long, unsigned int);qsl::engine::OrderBook::level_for[abi:cxx11](qsl::core::Side, long);std::_Rb_tree_insert_and_rebalance(bool, std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)
439 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::cancel(unsigned int, unsigned long)
382 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::match_baseline(qsl::core::Side, qsl::engine::OrderBook::MatchContext&);cfree@GLIBC_2.17
365 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::match_baseline(qsl::core::Side, qsl::engine::OrderBook::MatchContext&);qsl::engine::OrderBook::fill_front_order(std::__cxx11::list<qsl::engine::Order, std::pmr::polymorphic_allocator<qsl::engine::Order> >&, long, qsl::engine::OrderBook::MatchContext&)
278 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);cfree@GLIBC_2.17
278 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::rest(unsigned long, qsl::core::Side, long, unsigned int);std::__detail::_Map_base<unsigned long, std::pair<unsigned long const, qsl::engine::OrderBook::Locator>, std::pmr::polymorphic_allocator<std::pair<unsigned long const, qsl::engine::OrderBook::Locator> >, std::__detail::_Select1st, std::equal_to<unsigned long>, std::hash<unsigned long>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>::operator[](unsigned long const&)
257 qsl-bench;_start;__libc_start_main@@GLIBC_2.34;__libc_start_call_main;main;qsl::engine::MatchingEngine::new_limit(unsigned int, unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::add_limit(unsigned long, qsl::core::Side, long, unsigned int, qsl::core::TimeInForce);qsl::engine::OrderBook::rest(unsigned long, qsl::core::Side, long, unsigned int);std::__detail::_Map_base<unsigned long, std::pair<unsigned long const, qsl::engine::OrderBook::Locator>, std::pmr::polymorphic_allocator<std::pair<unsigned long const, qsl::engine::OrderBook::Locator> >, std::__detail::_Select1st, std::equal_to<unsigned long>, std::hash<unsigned long>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>::operator[](unsigned long const&);operator new(unsigned long, std::align_val_t);__posix_memalign;malloc

Benchmark output:
profile workload: storage=baseline ops=42590208 elapsed=5.000s (8517648 ops/sec) resting~512
profile workload: storage=baseline ops=50659328 elapsed=5.000s (10131572 ops/sec) resting~512
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