Data Warehouse Performance Tuning
Are your dashboards getting slower while your Snowflake, ClickHouse, Redshift or BigQuery bill keeps growing? In a cloud data warehouse, performance and cost are two sides of the same problem: every query is billed, as credits, slots, RPUs or bytes scanned.
The fix is rarely more compute. It usually lies in how the data is laid out, how warehouses and clusters are sized, and how your queries meet both. Getting this right takes a deep understanding of how each platform stores, prunes and processes data.
That is our expertise. Our performance engineers find where your warehouse loses time and money, and fix it: data layout, keys, sizing and queries. We verify each change on your workload before we recommend it.
Talk to a performance engineer
Snowflake, ClickHouse, Redshift or BigQuery: tell us your platform, your data volume and which queries are too slow or too expensive.
In a first call, we discuss where the time and money go and where the biggest gains are likely.
Typical levers: clustering, sort and ordering keys, partitioning, warehouse and cluster sizing, serverless vs. provisioned capacity, caching and query rewrites.
You get concrete changes for your workload, each one verified, not a generic best-practice list.
12×
faster on 4.1 billion log rows, same warehouse size
40×
faster with a tuned schema and ordering keys
30
years of performance engineering
How we work
1. Analyse
Your goals, your platform and your workload. The query history shows which query families take up the time and the budget.
2. Diagnose
We find the bottlenecks: scans that pruning should avoid, keys that don't match the filters, warehouses sized for the peak instead of the typical load.
3. Tune
Data layout, keys, sizing, capacity model and queries, one change at a time, each verified on your workload.
4. Hand over
A prioritised list of changes with their effect on latency and cost, explained so your team can keep the gains.
Who we work with
Engineering and data teams
CTOs and architects whose dashboards slow down as data grows, or whose warehouse bill grows faster than its use.
IT consultants
Add our performance engineering to your client project when an analytical platform needs more than standard tuning.
Public sector
Get more out of existing platforms and budgets, with every change documented and traceable.