Generated: 2026-04-19 17:52:39 UTC
Machine: costa-desktop (x86_64, 24 cores)
CSV: benchmarks-posix.csv
Complete matrix rows expected: 201
Scenario
Target RPS
Expected Rows
Actual Rows
uds-ping-pong
0
9
9
uds-ping-pong
100000
9
9
uds-ping-pong
10000
9
9
uds-ping-pong
1000
9
9
shm-ping-pong
0
9
9
shm-ping-pong
100000
9
9
shm-ping-pong
10000
9
9
shm-ping-pong
1000
9
9
uds-batch-ping-pong
0
9
9
uds-batch-ping-pong
100000
9
9
uds-batch-ping-pong
10000
9
9
uds-batch-ping-pong
1000
9
9
shm-batch-ping-pong
0
9
9
shm-batch-ping-pong
100000
9
9
shm-batch-ping-pong
10000
9
9
shm-batch-ping-pong
1000
9
9
snapshot-baseline
0
9
9
snapshot-baseline
1000
9
9
snapshot-shm
0
9
9
snapshot-shm
1000
9
9
lookup
0
3
3
uds-pipeline-d16
0
9
9
uds-pipeline-batch-d16
0
9
9
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
169.5k
4
7
15
45.8%
52.576%
98.376%
c
go
158.2k
5
8
18
44.0%
53.781%
97.781%
c
rust
160.5k
6
7
15
46.2%
53.521%
99.721%
go
c
153.0k
5
8
18
53.1%
48.763%
101.863%
go
go
148.9k
5
9
19
50.6%
50.577%
101.177%
go
rust
148.2k
7
8
17
53.0%
49.182%
102.182%
rust
c
160.9k
5
7
16
47.1%
51.446%
98.546%
rust
go
142.1k
5
9
21
42.6%
51.643%
94.243%
rust
rust
156.0k
6
7
16
46.9%
52.018%
98.918%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
100.0k
6
9
21
32.5%
35.925%
68.425%
c
go
100.0k
7
10
22
34.0%
41.034%
75.034%
c
rust
100.0k
6
8
19
31.9%
35.989%
67.889%
go
c
100.0k
7
9
20
37.8%
33.880%
71.680%
go
go
100.0k
7
9
21
37.9%
37.347%
75.247%
go
rust
100.0k
7
8
18
37.4%
34.186%
71.586%
rust
c
100.0k
6
9
22
34.5%
37.108%
71.608%
rust
go
100.0k
7
9
20
33.8%
40.595%
74.395%
rust
rust
100.0k
7
8
18
33.0%
36.124%
69.124%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
10.0k
8
23
33
5.5%
5.290%
10.790%
c
go
10.0k
8
25
35
6.0%
7.133%
13.133%
c
rust
10.0k
8
21
31
5.9%
5.497%
11.397%
go
c
10.0k
7
20
35
5.5%
4.451%
9.951%
go
go
10.0k
8
21
34
5.6%
5.592%
11.192%
go
rust
10.0k
7
24
37
5.9%
4.740%
10.640%
rust
c
10.0k
8
21
31
5.4%
4.939%
10.339%
rust
go
10.0k
9
26
36
6.3%
7.270%
13.570%
rust
rust
10.0k
8
22
32
5.6%
5.197%
10.797%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
1.0k
26
46
61
1.1%
1.038%
2.138%
c
go
1.0k
17
37
52
1.1%
1.998%
3.098%
c
rust
1.0k
17
32
43
0.7%
0.985%
1.685%
go
c
1.0k
19
38
51
1.8%
1.139%
2.939%
go
go
1.0k
19
38
49
1.8%
1.886%
3.686%
go
rust
1.0k
17
37
48
1.7%
1.051%
2.751%
rust
c
1.0k
15
29
39
1.0%
0.972%
1.972%
rust
go
1.0k
18
37
57
1.2%
2.007%
3.207%
rust
rust
1.0k
15
30
39
1.0%
0.998%
1.998%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
3.22M
0
0
0
98.7%
98.718%
197.418%
c
go
3.15M
0
0
0
98.5%
99.130%
197.630%
c
rust
3.17M
0
0
0
97.9%
97.900%
195.800%
go
c
2.45M
0
0
0
98.8%
98.055%
196.855%
go
go
2.45M
0
0
0
98.8%
98.688%
197.488%
go
rust
2.32M
0
0
0
98.6%
97.926%
196.526%
rust
c
3.00M
0
0
0
98.7%
98.738%
197.438%
rust
go
2.82M
0
0
0
98.3%
98.979%
197.279%
rust
rust
3.10M
0
0
0
98.6%
98.599%
197.199%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
100.0k
0
3
11
10.9%
13.091%
23.991%
c
go
100.0k
0
3
11
11.0%
15.516%
26.516%
c
rust
100.0k
0
3
12
11.3%
13.685%
24.985%
go
c
100.0k
0
0
6
6.8%
6.256%
13.056%
go
go
100.0k
0
0
8
7.0%
7.329%
14.329%
go
rust
100.0k
0
0
4
6.6%
6.261%
12.861%
rust
c
100.0k
0
3
12
11.9%
14.080%
25.980%
rust
go
100.0k
0
3
12
11.5%
16.008%
27.508%
rust
rust
100.0k
0
3
13
11.7%
14.116%
25.816%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
10.0k
2
13
21
4.7%
6.130%
10.830%
c
go
10.0k
3
13
20
5.3%
7.991%
13.291%
c
rust
10.0k
2
12
17
4.5%
6.090%
10.590%
go
c
10.0k
0
9
17
2.0%
1.610%
3.610%
go
go
10.0k
0
13
21
2.3%
2.765%
5.065%
go
rust
10.0k
0
10
18
2.0%
1.652%
3.652%
rust
c
10.0k
2
12
18
4.7%
5.833%
10.533%
rust
go
10.0k
3
13
19
5.0%
7.775%
12.775%
rust
rust
10.0k
3
13
20
5.0%
6.482%
11.482%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
1.0k
10
21
51
1.1%
1.094%
2.194%
c
go
1.0k
9
17
23
0.9%
1.828%
2.728%
c
rust
1.0k
8
17
25
0.9%
0.983%
1.883%
go
c
1.0k
8
19
31
1.3%
0.942%
2.242%
go
go
1.0k
8
18
27
1.3%
1.699%
2.999%
go
rust
1.0k
9
18
27
1.3%
0.936%
2.236%
rust
c
1.0k
10
19
28
1.0%
1.068%
2.068%
rust
go
1.0k
9
18
25
1.0%
1.840%
2.840%
rust
rust
1.0k
9
18
29
1.0%
0.982%
1.982%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
30.13M
12
25
34
47.5%
48.658%
96.158%
c
go
23.40M
16
38
48
37.4%
59.741%
97.141%
c
rust
27.17M
13
34
44
42.4%
53.728%
96.128%
go
c
27.16M
13
27
38
54.2%
43.883%
98.083%
go
go
20.18M
18
42
51
42.9%
56.278%
99.178%
go
rust
22.54M
16
37
47
48.1%
49.879%
97.979%
rust
c
28.57M
13
25
35
52.2%
44.572%
96.772%
rust
go
23.04M
16
36
45
42.0%
56.391%
98.391%
rust
rust
25.21M
14
33
44
47.0%
49.754%
96.754%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
30.35M
12
24
32
48.1%
49.037%
97.137%
c
go
22.24M
17
39
47
37.6%
60.073%
97.673%
c
rust
28.09M
13
32
42
42.8%
54.570%
97.370%
go
c
27.93M
13
27
35
54.4%
43.963%
98.363%
go
go
20.68M
18
41
50
43.1%
56.117%
99.217%
go
rust
25.16M
14
34
43
49.3%
49.325%
98.625%
rust
c
27.34M
13
25
34
51.7%
45.067%
96.767%
rust
go
21.87M
17
39
46
41.3%
56.816%
98.116%
rust
rust
26.71M
14
30
41
47.8%
49.626%
97.426%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
5.04M
17
31
43
11.5%
10.575%
22.075%
c
go
5.04M
20
46
59
11.2%
16.605%
27.805%
c
rust
5.04M
17
36
46
10.4%
12.139%
22.539%
go
c
4.99M
16
31
45
12.4%
9.628%
22.028%
go
go
5.02M
21
45
58
12.7%
16.130%
28.830%
go
rust
5.02M
17
38
48
12.3%
11.734%
24.034%
rust
c
5.04M
17
30
42
12.4%
10.441%
22.841%
rust
go
5.04M
20
44
56
11.8%
15.956%
27.756%
rust
rust
5.04M
21
40
50
13.1%
14.160%
27.260%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
505.3k
25
45
59
1.7%
1.572%
3.272%
c
go
505.3k
32
55
66
1.6%
2.837%
4.437%
c
rust
505.3k
41
118
695
4.0%
3.331%
7.331%
go
c
501.1k
27
49
65
2.4%
1.586%
3.986%
go
go
504.9k
34
60
74
2.4%
2.825%
5.225%
go
rust
507.0k
33
64
139
2.9%
2.007%
4.907%
rust
c
505.3k
24
43
54
1.8%
1.547%
3.347%
rust
go
505.3k
32
58
70
1.9%
2.867%
4.767%
rust
rust
505.3k
40
85
211
3.0%
2.446%
5.446%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
48.95M
7
17
21
81.7%
81.704%
163.404%
c
go
34.27M
12
25
32
65.1%
84.457%
149.557%
c
rust
47.87M
8
17
23
79.4%
85.601%
165.001%
go
c
45.19M
7
18
22
85.5%
78.113%
163.613%
go
go
33.32M
12
25
32
71.4%
81.922%
153.322%
go
rust
38.01M
10
21
28
78.2%
76.699%
154.899%
rust
c
43.91M
8
18
22
84.1%
77.882%
161.982%
rust
go
28.71M
13
27
36
64.6%
77.608%
142.208%
rust
rust
36.53M
10
22
30
75.6%
74.974%
150.574%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
48.08M
7
17
21
81.0%
81.442%
162.442%
c
go
34.59M
12
25
33
65.2%
84.729%
149.929%
c
rust
42.71M
9
20
26
74.5%
81.914%
156.414%
go
c
48.36M
7
17
21
87.4%
81.920%
169.320%
go
go
30.99M
13
27
35
69.1%
80.334%
149.434%
go
rust
39.94M
9
20
27
80.2%
77.889%
158.089%
rust
c
39.68M
9
19
24
80.1%
72.781%
152.881%
rust
go
29.93M
13
26
33
67.1%
78.029%
145.129%
rust
rust
32.66M
11
24
32
71.3%
71.392%
142.692%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
5.04M
12
23
31
11.9%
11.317%
23.217%
c
go
5.04M
18
37
46
12.6%
18.172%
30.772%
c
rust
5.04M
14
27
35
12.1%
12.795%
24.895%
go
c
5.02M
14
34
229
14.1%
11.703%
25.803%
go
go
5.03M
17
36
43
13.3%
16.821%
30.121%
go
rust
5.01M
14
32
40
12.9%
13.235%
26.135%
rust
c
5.04M
13
23
30
13.2%
11.272%
24.472%
rust
go
5.04M
18
36
42
13.3%
18.216%
31.516%
rust
rust
5.04M
15
30
37
13.2%
13.527%
26.727%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
505.3k
17
29
38
1.6%
1.500%
3.100%
c
go
505.3k
22
43
56
1.6%
2.803%
4.403%
c
rust
505.3k
19
35
42
1.6%
1.683%
3.283%
go
c
502.9k
18
32
44
2.1%
1.523%
3.623%
go
go
503.2k
22
45
58
2.2%
2.813%
5.013%
go
rust
502.1k
20
38
46
2.1%
1.724%
3.824%
rust
c
505.3k
17
29
36
1.7%
1.506%
3.206%
rust
go
505.3k
23
43
54
1.7%
2.815%
4.515%
rust
rust
505.3k
20
36
44
1.7%
1.776%
3.476%
Snapshot Baseline Refresh
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
147.7k
6
8
17
44.9%
53.581%
98.481%
c
go
138.4k
6
9
19
41.7%
56.374%
98.074%
c
rust
143.6k
5
9
20
43.3%
52.091%
95.391%
go
c
142.6k
5
9
19
51.7%
49.076%
100.776%
go
go
131.2k
6
10
20
49.4%
53.355%
102.755%
go
rust
139.1k
5
9
19
51.7%
49.563%
101.263%
rust
c
156.3k
5
8
17
45.8%
52.892%
98.692%
rust
go
140.2k
5
9
19
42.8%
56.684%
99.484%
rust
rust
148.7k
5
8
17
45.3%
53.263%
98.563%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
1.0k
17
34
46
1.1%
1.153%
2.253%
c
go
1.0k
20
41
59
1.2%
2.135%
3.335%
c
rust
1.0k
17
35
46
1.1%
1.191%
2.291%
go
c
1.0k
17
34
48
1.5%
1.046%
2.546%
go
go
1.0k
21
41
55
1.8%
1.973%
3.773%
go
rust
1.0k
20
40
50
1.8%
1.180%
2.980%
rust
c
1.0k
16
31
41
1.1%
1.073%
2.173%
rust
go
1.0k
18
38
54
1.2%
1.993%
3.193%
rust
rust
1.0k
15
33
44
1.1%
1.092%
2.192%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
1.48M
0
0
0
98.6%
98.629%
197.229%
c
go
1.32M
0
0
1
98.2%
100.906%
199.106%
c
rust
1.52M
0
0
0
97.9%
97.957%
195.857%
go
c
1.25M
0
0
1
98.6%
98.002%
196.602%
go
go
1.10M
0
1
1
97.9%
99.946%
197.846%
go
rust
1.35M
0
0
1
98.6%
98.003%
196.603%
rust
c
1.41M
0
0
0
98.2%
98.208%
196.408%
rust
go
1.31M
0
0
1
97.8%
100.603%
198.403%
rust
rust
1.48M
0
0
0
98.2%
98.233%
196.433%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
1.0k
12
21
32
0.6%
1.014%
1.614%
c
go
1.0k
11
22
36
1.0%
1.967%
2.967%
c
rust
1.0k
11
19
29
1.0%
1.084%
2.084%
go
c
1.0k
11
22
34
1.5%
1.051%
2.551%
go
go
1.0k
11
22
33
1.4%
1.881%
3.281%
go
rust
1.0k
10
21
30
1.4%
1.016%
2.416%
rust
c
1.0k
12
20
30
1.1%
1.150%
2.250%
rust
go
1.0k
11
21
34
1.0%
2.015%
3.015%
rust
rust
1.0k
12
20
33
1.1%
1.137%
2.237%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
576.7k
22
38
49
76.2%
89.964%
166.164%
c
go
440.4k
32
51
64
69.6%
90.517%
160.117%
c
rust
601.4k
21
38
48
76.3%
90.408%
166.708%
go
c
552.1k
26
38
50
91.7%
88.217%
179.917%
go
go
480.8k
27
46
61
84.7%
89.434%
174.134%
go
rust
545.3k
26
39
53
90.9%
87.904%
178.804%
rust
c
584.2k
21
38
49
77.4%
89.595%
166.995%
rust
go
455.0k
30
50
62
71.4%
91.226%
162.626%
rust
rust
620.6k
21
38
47
77.5%
89.923%
167.423%
Client
Server
Throughput
p50 (us)
p95 (us)
p99 (us)
Client CPU
Server CPU
Total CPU
c
c
76.45M
86
162
190
73.9%
90.216%
164.116%
c
go
46.02M
144
293
351
50.7%
93.860%
144.560%
c
rust
57.52M
137
238
282
63.3%
92.754%
156.054%
go
c
67.21M
126
167
201
86.8%
89.384%
176.184%
go
go
41.61M
192
300
367
60.5%
92.050%
152.550%
go
rust
56.64M
143
213
286
75.6%
90.199%
165.799%
rust
c
74.49M
95
163
192
81.4%
90.259%
171.659%
rust
go
44.24M
154
304
362
54.6%
92.928%
147.528%
rust
rust
61.75M
116
197
230
71.9%
91.563%
163.463%
Language
Throughput
Client CPU
Total CPU
c
173.47M
99.4%
99.4%
go
138.48M
99.5%
99.5%
rust
147.68M
99.4%
99.4%
Metric
Floor
Status
SHM ping-pong max
>= 1M req/s
PASS
SHM snapshot refresh max
>= 1M req/s for C/Rust pairs, >= 800k req/s for Go pairs
PASS
UDS ping-pong max
>= 120k req/s
PASS
UDS snapshot refresh max
>= 100k req/s
PASS
Local cache lookup
>= 10M lookups/s
PASS