ClickHouse/benchmark/snowflake/README.md
2022-07-04 13:37:42 +02:00

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Snowflake recently removed the DeWitt Clause, so we are allowed to make benchmarks.
> Customer may conduct benchmark tests of the Service (each a “Test”). Other than with respect to Tests involving Previews, which may not be disclosed externally, Customer may externally disclose a Test or otherwise cause the results of a Test to be externally disclosed if it includes as part of the disclosure all information necessary to replicate the Test.
https://www.snowflake.com/legal/acceptable-use-policy/
Account setup took only 3 seconds.
Data -> Databases -> + Database
Database 'test' created.
Press on "public" schema.
Create table "standard".
Paste "create.sql".
Press on "create table" again.
Press on "admin", "warehouses", + Warehouse
The choice of a warehouse size is unclear. Let's choose X-Large by default.
It is using "credits" for pricing.
Set up SnowSQL.
```
curl -O https://sfc-repo.snowflakecomputing.com/snowsql/bootstrap/1.2/linux_x86_64/snowsql-1.2.22-linux_x86_64.bash
bash snowsql-1.2.22-linux_x86_64.bash
source .profile
```
Upload the data:
```
COPY INTO test.public.hits2 FROM 's3://clickhouse-public-datasets/hits_compatible/hits.csv.gz' FILE_FORMAT = (TYPE = CSV, COMPRESSION = GZIP, FIELD_OPTIONALLY_ENCLOSED_BY = '"')
```
42 min 4 sec.
```
export SNOWSQL_PWD='...' SNOWSQL_ACCOUNT='...' SNOWSQL_USER='myuser'
snowsql --region eu-central-1 --schemaname PUBLIC --dbname HITS --warehouse TEST --query "SELECT 1"
```
Before the benchmark:
```
ALTER USER myuser SET USE_CACHED_RESULT = false;
```
Run the benchmark:
```
./run.sh 2>&1 | tee log.txt
cat log.txt |
grep -P 'Time Elapsed|^\d+ \(\w+\):' |
sed -r -e 's/^[0-9]+ \([0-9A-Za-z]+\):.*$/null/; s/^.*Time Elapsed:\s*([0-9.]+)s$/\1/' |
awk '{ if (i % 3 == 0) { printf "[" }; printf $1; if (i % 3 != 2) { printf "," } else { print "]," }; ++i; }'
```