Explore how Sequin out‑performs every Debezium deployment mode by up to 6.8× in throughput and 4.7× in latency. See why Sequin is the fastest Postgres CDC tool available.
AWS Graviton EC2 | vCPU / GiB | Avg row size | Sustained throughput | Bandwidth |
---|---|---|---|---|
c8g.4xlarge | 16 / 32 | 100B | 60k ops/s | 5.53 MB/s |
c8g.4xlarge | 16 / 32 | 200B | 58k ops/s | 10.64 MB/s |
c8g.4xlarge | 16 / 32 | 400B | 52k ops/s | 19.92 MB/s |
c8g.4xlarge | 16 / 32 | 1.6kb | 23k ops/s | 36.06 MB/s |
c8g.2xlarge | 8 / 16 | 200B | 34k ops/s | 6.32 MB/s |
c8g.xlarge | 4 / 8 | 200B | 20k ops/s | 3.81 MB/s |
Metric | 8 MCUs (max available on AWS MSK Connect) |
---|---|
Sustained throughput | 6k ops/s |
Average latency | ≈ 258ms |
99th‑percentile latency | ≈ 499ms |
Hardware | Row size | Debezium Server | Sequin |
---|---|---|---|
16 vCPU / 32 GiB | 200 B | 20k ops/s (4 MB/s) | 58k ops/s (10.64 MB/s) |
16 vCPU / 32 GiB | 400 B | 20.3k ops/s (7.73 MB/s) | 52k ops/s (19.92 MB/s) |
8 vCPU / 16 GiB | 100 B | 20k ops/s (2 MB/s) | 30k ops/s (3 MB/s) |
4 vCPU / 8 GiB | 100 B | 20k ops/s (2 MB/s) | 29k ops/s (2.9 MB/s) |
workload_generator.py
deployed to a dedicated EC2 instance.
Throughput and end-to-end latency are measured with a Kafka consumer deployed to a separate EC2 instance. The stats are calculated as:
updated_at
timestamp) and it’s delivery to AWS MSK Kafka (Kafka creation
timestamp).workload_generator.py
applies a mixed workload of INSERT
, UPDATE
, and DELETE
operations to the benchmark_records
table.
benchmark_records
Postgres table has the following schema:
cdc_stats.py
script is deployed to a separate EC2 instance and reads from AWS MSK Kafka. Stats are bucketed and saved to a CSV file for analysis.
db.m5.8xlarge
instance (32 vCPUs, 128GB RAM)Tool / Deployment | Sustained throughput | Avg latency | 99p latency | |
---|---|---|---|---|
Sequin | >50 k ops / s | 55 ms | 253 ms | |
Debezium · MSK | 6 k ops / s | 258 ms | 499 ms | |
Debezium · Server | 23 k ops / s | 210 ms | 440 ms | |
Fivetran | 5+ minutes | - | - | - |
Airbyte | 1+ hours | - | - | - |