Benchmark Locust logging with RPCConnectionManager by achamayou · Pull Request #8216 · microsoft/CCF

Amaury Chamayou (achamayou) · 2026-08-27T07:36:48Z

Summary

Applies the exact #8117 head (b3990627387a45cf1f41a5864b51fc30c3c53db2) on top of the exact #8206 head (9c95e9a60eb087ca5bbdd12d2dec271e99c270df) solely to collect combined Locust logging benchmark numbers.

Depends on #8206 and #8117.

Conflict resolution

Combined the New RPCConnectionManager: Single unified manager, no ringbuffer, OpenSSL-owned sockets #8117 TLS release note with the existing 7.0.13 entries from Replace Logging Piccolo benchmark with Locust #8206.
Preserved the PAL mutex/thread-safety annotations while integrating New RPCConnectionManager: Single unified manager, no ringbuffer, OpenSSL-owned sockets #8117's JobBoard work-beacon wakeups.
Updated the coalesced WorkBeacon notification guard to use the PAL mutex type, resolving a semantic auto-merge mismatch found by the focused build.
Preserved Replace Logging Piccolo benchmark with Locust #8206's certificate- and JWT-authenticated Locust logging workloads and CMake registrations.

Validation

Built ccf_launcher, task_system_test, and openssl_server_test.
task_system_test: 15 cases, 290 assertions passed.
openssl_server_test: 31 cases, 585 assertions passed.
C++ formatting, release-note validation, staged diff checks, and ASCII checks passed.

A full js_generic build was not usable in this Windows-backed WSL worktree because Git symlink files under QuickJS are materialized as regular files; the focused host launcher and unit-test targets above compile successfully.

Worker and client-count comparison

The two-worker sweep and three-worker sweep ran the certificate-authenticated blocking Locust workload at the same eight client counts used for #8206.

Clients	2 workers	3 workers	Change	p50 (2W/3W)	p99 (2W/3W)
320	14,990.0 tx/s	15,134.9 tx/s	+1.0%	19/19 ms	23/22 ms
480	21,035.5 tx/s	21,830.3 tx/s	+3.8%	19/18 ms	33/24 ms
560	22,793.3 tx/s	24,388.5 tx/s	+7.0%	19/19 ms	38/36 ms
640	21,780.2 tx/s	26,094.8 tx/s	+19.8%	21/20 ms	43/38 ms
720	20,373.2 tx/s	25,245.2 tx/s	+23.9%	25/22 ms	47/43 ms
800	19,473.8 tx/s	23,226.0 tx/s	+19.3%	33/25 ms	52/46 ms
900	20,021.4 tx/s	22,628.3 tx/s	+13.0%	36/34 ms	62/52 ms
1,000	19,892.9 tx/s	22,379.0 tx/s	+12.5%	39/37 ms	71/60 ms

Unlike the original transport results on #8206, where a third worker did not raise the approximately 25k tx/s ceiling, RPCConnectionManager benefits materially from the third worker at saturation. The two-worker curve peaks at 560 clients at 22.8k tx/s; the three-worker curve peaks at 640 clients at 26.1k tx/s. Below saturation the difference is small, but from 640 clients onward the third worker improves throughput by 12.5-23.9% and lowers tail latency.

The branch is restored to the normal 2-worker, 640-client configuration. Final restored run 33065616806 passed at 24,797.6 tx/s, 20ms p50, 40ms p99, and 112.0 MiB.

…over

…ransport cert-deferred listening + ALPN + outbound client, RPCConnectionManager (AbstractRPCSessions). Not yet wired into enclave/run.cpp.

…wire RPCConnectionManager into enclave.h/run.cpp, delete RPCSessions/rpc_connections/tls_session. Full build green, 53/53 unit tests pass.

…:Cert::use) and request client cert on inbound for caller auth; add peer-cert capture test. Full build green, unit tests pass.

…xing localhost/[::1] interfaces (cpp, cpp_cose_only, common_ipv6 e2e). Add localhost/IPv6 binding tests.

… large response queued just before close_socket() is not truncated (fixes cpp/cpp_cose_only receipt 'server disconnected'). Add truncation test.

…e (ERR_clear_error) before each SSL op so a stale error from one connection cannot poison SSL_get_error for another (root cause of cpp/cpp_cose_only 'server disconnected'). Add persistent-connection + peer-cert tests.

… handler; branch udp interfaces to listen_udp. Clearly marked QUIC extension points (substrate for OpenSSL >=3.5 native QUIC). e2e_logging udp echo passes; full suite green.

…ned quic_session.h/src/quic, udp.h + udp/msg_types.h + UDPImpl vestiges in run.cpp, dead RPC ringbuffer message enums (keep tcp::ConnID). Drop old-implementation comments. Fix build after cert.h use->configure_ssl rename + commit-callback include.

…Config (so the enclave-side RPC manager receives it); track per-connection last_active in OpenSSLServer and sweep idle connections off the epoll timeout. Plumbed manager->bridge->server. idletimeout e2e passes.

…/CCF into rpc_connection_manager

…ection_manager

Notify the enclave work beacon when transport tasks enter the JobBoard, while preserving direct worker handoff and coalescing redundant wakeups. Keep bounded task drains moving immediately when a backlog remains.\n\nRefs #8117\n\nCo-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

…code - Modify CMakeLists.txt for better configuration. - Refactor rpc_tls_client.h for improved clarity and functionality. - Enhance openssl_server_test.cpp with additional test cases.

RPC task workers can query consensus state concurrently with Raft message processing. Publish a coherent query snapshot without taking the Raft lock from KV-backed endpoints, avoiding both data races and KV/Raft lock inversion.\n\nCo-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> # Conflicts: # CMakeLists.txt # src/tls/test/main.cpp

These changes were added while chasing TSAN failures exposed during the RPC connection manager work, but they are broader Raft synchronization changes and should be handled separately rather than bundled into this PR. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Co-authored-by: Amaury Chamayou <amchamay@microsoft.com>

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

github-actions · 2026-08-27T08:04:39Z

Description

Comparing 4 available runs from this branch (#8216) against the trend of the last 30 main runs.

Each chart plots every benchmark as an axis, with values normalized so 100 is the EWMA baseline of recent main runs, using a 7-run half-life. The 4 orange branch lines run from the oldest (faintest) to the latest (darkest and thickest); the darker blue band is the main baseline +/- 1 std dev and the lighter blue band around it is +/- 2 std dev.

Axis labels show the latest branch value and its difference from the main EWMA baseline, where 0% is on the baseline. They are coloured green where the latest run improves on the baseline, red where it regresses, and grey where the difference is within one std dev of the baseline (within noise). Higher is better for throughput and rate, lower for latency and memory.

A benchmark which does not exist on main yet has no baseline of its own, so its earliest available run from this branch is used as its reference and its band is measured across this branch's runs. Its axis is normalized, scaled and coloured like any other, but the comparison is against this branch rather than against main.

Throughput (tx/s)

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radar-beta
axis b0["Basic: 78,262 tx/s ▲ 11%"]
axis b2["Basic Blocking Locust 100ms: 3,052 tx/s ▬ 0%"]
axis b3["Basic Blocking Locust 20ms: 15,126 tx/s ▬ 0%"]
axis b4["Basic Blocking Locust 2ms: 25,416 tx/s ▼ 21%"]
axis b5["Basic JS: 5,023 tx/s ▲ 6%"]
axis b6["Basic Multi-Threaded: 128,482 tx/s ▲ 48%"]
axis b7["Historical Queries: 234,922 tx/s ▲ 13%"]
axis b9["L…g C…e Blocking Locust: 24,798 tx/s ▲ 3%"]
axis b11["L…g JWT Blocking Locust: 14,772 tx/s ▬ 0%"]
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Latency (ms)

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radar-beta
axis b0["Basic Blocking Locust 100ms: 98 ms ▼ 1%"]
axis b1["Basic Blocking Locust 20ms: 18 ms ▼ 5%"]
axis b2["Basic Blocking Locust 2ms: 11 ms ▲ 22%"]
axis b3["Commit Latency 16ms: 4.07 ms ▬ -12%"]
axis b4["Commit Latency 1ms: 1.82 ms ▼ 7%"]
axis b5["Commit Latency 256ms: 205 ms ▼ 4%"]
axis b6["L…g Certificate Blocking Locust: 20 ms ▬ 0%"]
axis b7["Logging JWT Blocking Locust: 19 ms ▼ 5%"]
curve stddev2_high["main EWMA + 2 std dev"]{100.00, 100.00, 108.27, 152.75, 104.41, 102.84, 100.00, 100.00}
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Memory (bytes)

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axis b0["Basic: 92 MiB ▲ 4%"]
axis b2["Basic Blocking Locust 100ms: 85.6 MiB ▼ 5%"]
axis b3["Basic Blocking Locust 20ms: 87.4 MiB ▼ 4%"]
axis b4["Basic Blocking Locust 2ms: 88.6 MiB ▼ 5%"]
axis b5["Basic JS: 74.8 MiB ▲ 6%"]
axis b6["Basic Multi-Threaded: 92 MiB ▲ 3%"]
axis b8["L…g C…e Blocking Locust: 112 MiB ▬ 0%"]
axis b10["Logging JWT Blocking Locust: 84.7 MiB ▼ 8%"]
curve stddev2_high["main EWMA + 2 std dev"]{104.24, 102.15, 101.64, 101.83, 103.83, 102.57, 100.26, 102.24}
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curve stddev2_low["main EWMA - 2 std dev"]{95.76, 97.85, 98.36, 98.17, 96.17, 97.43, 99.74, 97.76}
curve branch_0["#8216 (3 runs earlier)"]{104.78, 95.67, 98.64, 94.71, 104.77, 104.87, 100.00, 94.12}
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Rate (ops/s)

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radar-beta
axis b0["CHAMP get: 38,023,802 ops/s ▬ 0%"]
axis b1["CHAMP put: 5,557,727 ops/s ▬ +2%"]
axis b2["KV deserialisation: 1,639,613 ops/s ▬ +1%"]
axis b3["KV serialisation: 1,438,849 ops/s ▬ 0%"]
axis b4["KV s…t deserialisation: 4,176 ops/s ▬ 0%"]
axis b5["KV snapshot serialisation: 4,600 ops/s ▬ +3%"]
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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 6435b6e1-97c1-49da-bb1d-59d0ae08364f

Eddy Ashton (eddyashton) added 30 commits July 30, 2026 14:39

Add LoopExecutor
aaab091

checkpoint: OpenSSL-native transport subsystem (green) before RPC cut…
113d71c
…over

WIP: OpenSSL-native RPC cutover - sessions plaintext+SessionWriter, t…
b543bf7
…ransport cert-deferred listening + ALPN + outbound client, RPCConnectionManager (AbstractRPCSessions). Not yet wired into enclave/run.cpp.

OpenSSL-native RPC cutover: relocate RPC listening into enclave lib, …
aea2b27
…wire RPCConnectionManager into enclave.h/run.cpp, delete RPCSessions/rpc_connections/tls_session. Full build green, 53/53 unit tests pass.

Wire outbound client TLS (peer CA verification + client cert via tls:…
45a1a27
…:Cert::use) and request client cert on inbound for caller auth; add peer-cert capture test. Full build green, unit tests pass.

Listener resolves bind address via getaddrinfo (hostnames + IPv6), fi…
82fc341
…xing localhost/[::1] interfaces (cpp, cpp_cose_only, common_ipv6 e2e). Add localhost/IPv6 binding tests.

Graceful connection close: flush buffered output before teardown so a…
bbb9d3b
… large response queued just before close_socket() is not truncated (fixes cpp/cpp_cose_only receipt 'server disconnected'). Add truncation test.

Restore UDP echo via DatagramServer (UDP socket in epoll loop) + echo…
592fc5f
… handler; branch udp interfaces to listen_udp. Clearly marked QUIC extension points (substrate for OpenSSL >=3.5 native QUIC). e2e_logging udp echo passes; full suite green.

Format pass
d9f0a51

Removed unused SNI
50c47b7

Remove unused function
d2a3b8a

Idle connection timeout: move idle_connection_timeout HostConfig->CCF…
55422b6
…Config (so the enclave-side RPC manager receives it); track per-connection last_active in OpenSSLServer and sweep idle connections off the epoll timeout. Plumbed manager->bridge->server. idletimeout e2e passes.

Restore custom protocol sessions on OpenSSL RPC path
6591f98

Format
a0a4972

Fix RPC session metrics for session-initiated closes
61be04b

Address RPC transport review feedback
3d5b4c2

Format
66fbfb5

Update comments
6f38be3

buh
e15f4c4

Handle open ledger chunks in SNP recovery checks
5ca4413

Fix JWT tests - prefer to bind on IPv4
ebf2bd8

Format
d0dbfdf

Stop RPC transports before host shutdown
eb982cf

Report outbound client connection closes
c41e1c3

Add some debug logging
59da3e7

Remove debug
eb18b7d

Remove more TEMP debug logging
0a42036

Add CURLE_SSL_CONNECT_ERROR to transient transport error classifications
b539ff4

Eddy Ashton (eddyashton)and others added 24 commits August 6, 2026 14:22

Review tidying
85b11a4

More fixes? Impossible to know at this point
c50ab93

Merge branch 'main' into rpc_connection_manager
0a3a178

Reduce copies
46a4df2

Merge branch 'main' into rpc_connection_manager
71b8c53

Restore inbound backpressure
d7d2ea4

More review tidy-up
4e96084

Merge branch 'rpc_connection_manager' ofhttps://github.com/microsoft…
3769e9e
…/CCF into rpc_connection_manager

Merge branch 'main' ofhttps://github.com/microsoft/CCFinto rpc_conn…
9ad1eb0
…ection_manager

More review feedback cleanup
0af7572

Format and pyproject version
2fd0a95

Merge branch 'main' into rpc_connection_manager
8ae80ff
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Update changelog and improve OpenSSL server tests and header file
66371ba

Update CMakeLists and improve rpc_tls_client and openssl_server_test …
a7f22b3
…code - Modify CMakeLists.txt for better configuration. - Refactor rpc_tls_client.h for improved clarity and functionality. - Enhance openssl_server_test.cpp with additional test cases.

Update changelog and enhance HTTP curl functionality and tests
b0d7982

Merge branch 'main' into rpc_connection_manager
57c7504

Refactor raft.h to improve code clarity and reduce complexity
1a0469e

Merge branch 'main' into rpc_connection_manager
063faf5
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> # Conflicts: # CMakeLists.txt # src/tls/test/main.cpp

Merge branch 'main' into rpc_connection_manager
59dac99

Apply suggestion from@achamayou
b399062
Co-authored-by: Amaury Chamayou <amchamay@microsoft.com>

Benchmark RPC manager with Locust logging
959ecf4
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Amaury Chamayou (achamayou) added the bench-ab label Aug 27, 2026

Amaury Chamayou (achamayou) added 3 commits August 27, 2026 10:44

Sweep RPC manager Locust clients with two workers
ece96bc
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 6435b6e1-97c1-49da-bb1d-59d0ae08364f

Sweep RPC manager Locust clients with three workers
2dff61e
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 6435b6e1-97c1-49da-bb1d-59d0ae08364f

Restore two-worker RPC manager benchmark
bc7463d
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 6435b6e1-97c1-49da-bb1d-59d0ae08364f

Amaury Chamayou (achamayou) closed this Aug 27, 2026

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Benchmark Locust logging with RPCConnectionManager - #8216

Benchmark Locust logging with RPCConnectionManager#8216
Amaury Chamayou (achamayou) wants to merge 79 commits into
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Amaury Chamayou (achamayou) commented Aug 27, 2026•
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Amaury Chamayou (achamayou) commented Aug 27, 2026• edited Loading Uh oh! There was an error while loading. Please reload this page.

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Summary

Conflict resolution

Validation

Worker and client-count comparison

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Amaury Chamayou (achamayou) commented Aug 27, 2026•
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