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Cohere-100M — 2026-09-04
r8i.8xlarge · peak recall 0.9972 @ 24 QPS
QPS at recall
| Recall | mkt-defaults |
|---|
| 0.90 | 502 |
| 0.95 | 236 |
| 0.99 | 55 |
Latency at recall
| mkt-defaults |
|---|
| @ recall 0.90 | |
| p50 | 1.96 ms |
| p95 | 2.51 ms |
| p99 | 2.76 ms |
| @ recall 0.95 | |
| p50 | 4.18 ms |
| p95 | 5.20 ms |
| p99 | 5.65 ms |
| @ recall 0.99 | |
| p50 | 18.02 ms |
| p95 | 21.91 ms |
| p99 | 23.33 ms |
All values are taken at exactly the stated recall: each configuration's own sweep is log-interpolated between its two surrounding measured points (measured values are used verbatim on an exact hit) and the best configuration at that recall is shown — values are never interpolated across different configurations. “—” means no single sweep spans that recall; nothing is extrapolated. Recall is distance-based (ann-benchmarks, tie-aware). Insert/update/delete workloads are not measured.
Plots
Pareto svg ·
Distance-recall svg ·
Per-config svgHost
| Instance type | r8i.8xlarge |
| Hostname | ip-172-31-14-122 |
| CPU | Intel(R) Xeon(R) 6975P-C (32 vCPU) |
| Memory | 248 GB |
| OS | Ubuntu 26.04.1 LTS |
| Kernel | 7.0.0-1011-aws |
Versions
| rekall | 0.1.0 (90330ec / main) |
| PostgreSQL | PostgreSQL 18.6 (Ubuntu 18.6-1.pgdg26.04+2) on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 15.2.0-16ubuntu1) 15.2.0, 64-bit |
| meerkat | 0.1.0 (fea1bca) |
| pg_prewarm | 1.2 |
| vector | 0.8.6 |
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Instance settings (observed)
instance type r8i.8xlarge
vCPU (observed) 32
memory (observed) 247.7 GiB
cpu model Intel(R) Xeon(R) 6975P-C
kernel 7.0.0-1011-aws
data directory /var/lib/postgresql/18/main
mount point /
filesystem ext4
media unknown
device root
provisioned IOPS — not an EBS volume
PostgreSQL settings
checkpoint_completion_target = 0.9
cluster_name = 18/main
data_directory = /var/lib/postgresql/18/main
effective_cache_size = 192 GB
effective_io_concurrency = 256
huge_pages = try
jit = off
maintenance_io_concurrency = 256
maintenance_work_mem = 102 GB
max_connections = 100
max_parallel_maintenance_workers = 16
max_parallel_workers = 32
max_wal_size = 32 GB
random_page_cost = 1.1
server_version = 18.6 (Ubuntu 18.6-1.pgdg26.04+2)
shared_buffers = 64 GB
wal_level = replica
work_mem = 1 GB