date_utc: 2026-09-27T21:49:05Z
host: ip-172-31-13-165.us-east-2.compute.internal
instance_type: c7i.8xlarge
kernel: 6.12.103-129.197.amzn2023.x86_64
cpu_model: Intel(R) Xeon(R) Platinum 8488C
cpus: 32
sockets/numa: 1 1
mem_total_gib: 61.8
hugepages: HugePages_Total:=0 HugePages_Free:=0 Hugepagesize:=2048
thp: always [madvise] never
governor: n/a
numa_balancing: 0
overcommit: 0
pg_numactl: numactl --interleave=all (postmaster)
storage:
NAME SIZE TYPE MODEL MOUNTPOINT
nvme0n1 150G disk Amazon Elastic Block Store
├─nvme0n1p1 150G part /
├─nvme0n1p127 1M part
└─nvme0n1p128 10M part /boot/efi
mdstat:
Personalities :
unused devices: <none>
data_fs: /dev/nvme0n1p1 xfs 150G 14G 137G 10% /
mentat_git: d34e0177 + duckdb-quack backend
rustc: rustc 1.90.0 (1159e78c4 2025-09-14)
python: Python 3.11.16
duckdb: 1.5.5
sqlite(host py): 3.40.0
postgres: n/a
pg_configure: n/a
invocation 2026-09-27T21:49:05Z: PHASE=all SCALES='s' BACKENDS='duckdb-quack' cpu_affinity=0-31
SCENARIOS='point_lookup ref_traversal aggregate predicate_scan pull as_of since input_bindings' EXTRA='write_mixed concurrency_sweep' CLIENTS='1 8 32 64 128' REPS=1 MIN_S=10 MIN_N=30 MAX_S=60
PROBE_S=20 MIXED_S=60 MIXED_READERS=8 SUSTAINED_S=0 SUSTAINED_CLIENTS=32
LOAD_MAX_S=5400 EXT_LOAD_MAX_S=5400 PG_LOAD_JOBS=32 EXT_SCENARIO_FILTER=''
warmup=3 calls (discarded) seed=20260509
invocation 2026-09-27T21:54:01Z: PHASE=bench SCALES='m' BACKENDS='duckdb-quack' cpu_affinity=0-31
SCENARIOS='point_lookup ref_traversal aggregate predicate_scan pull as_of since input_bindings' EXTRA='write_mixed concurrency_sweep' CLIENTS='1 8 32 64 128' REPS=1 MIN_S=10 MIN_N=30 MAX_S=60
PROBE_S=20 MIXED_S=60 MIXED_READERS=8 SUSTAINED_S=300 SUSTAINED_CLIENTS=32
LOAD_MAX_S=5400 EXT_LOAD_MAX_S=5400 PG_LOAD_JOBS=32 EXT_SCENARIO_FILTER=''
warmup=3 calls (discarded) seed=20260509
invocation 2026-09-27T22:04:53Z: PHASE=sustained SCALES='m' BACKENDS='duckdb' cpu_affinity=0-31
SCENARIOS='point_lookup ref_traversal aggregate predicate_scan pull as_of since input_bindings' EXTRA='write_mixed concurrency_sweep' CLIENTS='1 8 32 64 128' REPS=1 MIN_S=10 MIN_N=30 MAX_S=60
PROBE_S=20 MIXED_S=60 MIXED_READERS=8 SUSTAINED_S=300 SUSTAINED_CLIENTS=32
LOAD_MAX_S=5400 EXT_LOAD_MAX_S=5400 PG_LOAD_JOBS=32 EXT_SCENARIO_FILTER=''
warmup=3 calls (discarded) seed=20260509
