diff --git a/oxla/benchmark.sh b/oxla/benchmark.sh new file mode 100755 index 000000000..067929393 --- /dev/null +++ b/oxla/benchmark.sh @@ -0,0 +1,123 @@ +#!/bin/bash -e + +# cleanup +sudo ps aux | grep fakes3 | grep -v grep | awk '{print $2}' | sudo xargs -r kill -9 +sudo ps aux | grep oxla | grep -v grep | awk '{print $2}' | sudo xargs -r kill -9 + +# docker +sudo rm /usr/share/keyrings/docker-archive-keyring.gpg +curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg +echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null +sudo apt update +sudo apt install -y docker-ce + +# base +sudo apt-get install -y postgresql-client curl wget apt-transport-https ca-certificates software-properties-common gnupg2 parallel +sudo DEBIAN_FRONTEND=noninteractive apt-get install -y build-essential + +# ruby and fake S3 +sudo apt install -y ruby-full +sudo gem install bundler fakes3 webrick sorted_set + +# install aws cli tools +sudo rm /usr/local/bin/aws +sudo rm /usr/local/bin/aws_completer +sudo rm -rf /usr/local/aws-cli +sudo rm -rf ~/.aws/ aws + +curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip" +unzip awscliv2.zip +sudo ./aws/install --update +/usr/local/bin/aws --version +rm -f awscliv2.zip + +# configure aws +mkdir -p ~/.aws +echo -e "[default]\nregion = none" > ~/.aws/config +echo -e "[default]\naws_access_key_id = none\naws_secret_access_key = none" > ~/.aws/credentials + +# run fake S3 +sudo ps aux | grep fakes3 | grep -v grep | awk '{print $2}' | sudo xargs -r kill -9 +sudo rm -rf /mnt/fakes3_root +sudo mkdir -p /mnt/fakes3_root +sudo chmod a+rw /mnt/fakes3_root -R +fakes3 -r /mnt/fakes3_root -H 0.0.0.0 -p 4569 --license license.pdf > /dev/null 2>&1 & +sleep 10 # waiting for container start + +# download dataset +wget --no-verbose --continue 'https://datasets.clickhouse.com/hits_compatible/hits.tsv.gz' +gzip -d hits.tsv.gz +chmod 777 ~ hits.tsv + +# convert dataset to csv +rm -f part_*.csv +curl https://clickhouse.com/ | sh +./clickhouse local --query "SELECT * FROM 'hits.tsv' INTO OUTFILE 'hits.csv'" +rm hits.tsv + +# prepare digestable parts (5m rows each) of hits.csv +split -l 5000000 hits.csv part_ +for file in part_*; do mv "$file" "${file}.csv"; done + +# upload dataset (prepared parts) to fake S3 bucket +aws s3 mb s3://my-new-bucket --endpoint-url http://localhost:4569 + +for file in part_*.csv; do + echo "Processing file: $file" + + # copy the file to the S3 bucket + aws s3 cp "./$file" s3://my-new-bucket --endpoint-url http://localhost:4569 > /dev/null 2>&1 + + # clean-up tmp parts left after upload + TMPPARTS=$(aws s3api list-objects --bucket my-new-bucket --query "Contents[?contains(Key, '_${file}_')].Key" --output text --endpoint-url http://localhost:4569) + echo $TMPPARTS | tr ' ' '\n' | grep . | parallel -j16 aws s3api delete-object --bucket my-new-bucket --key {} --endpoint-url http://localhost:4569 +done + +# get and configure Oxla image +echo "Install and run Oxla." + +sudo ps aux | grep oxla | grep -v grep | awk '{print $2}' | sudo xargs -r kill -9 + +sudo docker run --rm -p 5432:5432 --name oxlacontainer public.ecr.aws/oxla/release:latest > /dev/null 2>&1 & +sleep 10 # waiting for container start and db initialisation (leader election, etc.) + +sudo docker exec oxlacontainer /bin/bash -c "sed -i 's#endpoint: \"\"#endpoint: \"http://localhost:4569\"#g' oxla/default_config.yml" +sudo docker exec oxlacontainer /bin/bash -c "sed -i 's#endpoint:.*#endpoint: '\''http://localhost:4569'\''#g' oxla/startup_config/config.yml" +sudo docker rmi oxla-configured-image:latest > /dev/null 2>&1 || echo "" > /dev/null +sudo docker commit oxlacontainer oxla-configured-image + +sudo ps aux | grep oxla | grep -v grep | awk '{print $2}' | sudo xargs -r kill -9 + +# run oxla +sudo docker run --rm --net=host --name oxlacontainer oxla-configured-image > /dev/null 2>&1 & +sleep 10 # waiting for container start and db initialisation (leader election, etc.) + +# create table and ingest data +export PGCLIENTENCODING=UTF8 +psql -h localhost -p 5432 -U postgres -t -c 'CREATE SCHEMA test' +psql -h localhost -p 5432 -U postgres -d test -t < create.sql + +for file in part_*.csv; do + echo "Processing file: $file" + psql -h localhost -p 5432 -U postgres -d test -t -c '\timing' -c "COPY hits FROM 's3://my-new-bucket/$file';" + aws s3api delete-object --bucket my-new-bucket --key "$file" --endpoint-url http://localhost:4569 +done + +# get ingested data size +echo "data size after ingest:" +sudo docker exec oxlacontainer /bin/bash -c "du -s oxla/data" + +# wait for merges to finish +sleep 30 + +# kill fake S3 and remove its data +ps aux | grep fakes3 | grep -v grep | awk '{print $2}' | sudo xargs -r kill -9 +sudo rm -rf /mnt/fakes3_root + +# run benchmark +echo "running benchmark..." +./run.sh 2>&1 | tee log.txt + +# format results +cat log.txt | grep -oP 'Time: \d+\.\d+ ms' | sed -r -e 's/Time: ([0-9]+\.[0-9]+) ms/\1/' | + awk '{ if (i % 3 == 0) { printf "[" }; printf $1 / 1000; if (i % 3 != 2) { printf "," } else { print "]," }; ++i; }' diff --git a/oxla/create.sql b/oxla/create.sql new file mode 100644 index 000000000..f04760ad1 --- /dev/null +++ b/oxla/create.sql @@ -0,0 +1,108 @@ +CREATE TABLE hits +( + WatchID BIGINT NOT NULL, + JavaEnable INT NOT NULL, + Title TEXT NOT NULL, + GoodEvent INT NOT NULL, + EventTime TIMESTAMP NOT NULL, + EventDate Date NOT NULL, + CounterID INTEGER NOT NULL, + ClientIP INTEGER NOT NULL, + RegionID INTEGER NOT NULL, + UserID BIGINT NOT NULL, + CounterClass INT NOT NULL, + OS INT NOT NULL, + UserAgent INT NOT NULL, + URL TEXT NOT NULL, + Referer TEXT NOT NULL, + IsRefresh INT NOT NULL, + RefererCategoryID INT NOT NULL, + RefererRegionID INTEGER NOT NULL, + URLCategoryID INT NOT NULL, + URLRegionID INTEGER NOT NULL, + ResolutionWidth INT NOT NULL, + ResolutionHeight INT NOT NULL, + ResolutionDepth INT NOT NULL, + FlashMajor INT NOT NULL, + FlashMinor INT NOT NULL, + FlashMinor2 TEXT NOT NULL, + NetMajor INT NOT NULL, + NetMinor INT NOT NULL, + UserAgentMajor INT NOT NULL, + UserAgentMinor TEXT NOT NULL, + CookieEnable INT NOT NULL, + JavascriptEnable INT NOT NULL, + IsMobile INT NOT NULL, + MobilePhone INT NOT NULL, + MobilePhoneModel TEXT NOT NULL, + Params TEXT NOT NULL, + IPNetworkID INTEGER NOT NULL, + TraficSourceID INT NOT NULL, + SearchEngineID INT NOT NULL, + SearchPhrase TEXT NOT NULL, + AdvEngineID INT NOT NULL, + IsArtifical INT NOT NULL, + WindowClientWidth INT NOT NULL, + WindowClientHeight INT NOT NULL, + ClientTimeZone INT NOT NULL, + ClientEventTime TIMESTAMP NOT NULL, + SilverlightVersion1 INT NOT NULL, + SilverlightVersion2 INT NOT NULL, + SilverlightVersion3 INTEGER NOT NULL, + SilverlightVersion4 INT NOT NULL, + PageCharset TEXT NOT NULL, + CodeVersion INTEGER NOT NULL, + IsLink INT NOT NULL, + IsDownload INT NOT NULL, + IsNotBounce INT NOT NULL, + FUniqID BIGINT NOT NULL, + OriginalURL TEXT NOT NULL, + HID INTEGER NOT NULL, + IsOldCounter INT NOT NULL, + IsEvent INT NOT NULL, + IsParameter INT NOT NULL, + DontCountHits INT NOT NULL, + WithHash INT NOT NULL, + HitColor CHAR NOT NULL, + LocalEventTime TIMESTAMP NOT NULL, + Age INT NOT NULL, + Sex INT NOT NULL, + Income INT NOT NULL, + Interests INT NOT NULL, + Robotness INT NOT NULL, + RemoteIP INTEGER NOT NULL, + WindowName INTEGER NOT NULL, + OpenerName INTEGER NOT NULL, + HistoryLength INT NOT NULL, + BrowserLanguage TEXT NOT NULL, + BrowserCountry TEXT NOT NULL, + SocialNetwork TEXT NOT NULL, + SocialAction TEXT NOT NULL, + HTTPError INT NOT NULL, + SendTiming INTEGER NOT NULL, + DNSTiming INTEGER NOT NULL, + ConnectTiming INTEGER NOT NULL, + ResponseStartTiming INTEGER NOT NULL, + ResponseEndTiming INTEGER NOT NULL, + FetchTiming INTEGER NOT NULL, + SocialSourceNetworkID INT NOT NULL, + SocialSourcePage TEXT NOT NULL, + ParamPrice BIGINT NOT NULL, + ParamOrderID TEXT NOT NULL, + ParamCurrency TEXT NOT NULL, + ParamCurrencyID INT NOT NULL, + OpenstatServiceName TEXT NOT NULL, + OpenstatCampaignID TEXT NOT NULL, + OpenstatAdID TEXT NOT NULL, + OpenstatSourceID TEXT NOT NULL, + UTMSource TEXT NOT NULL, + UTMMedium TEXT NOT NULL, + UTMCampaign TEXT NOT NULL, + UTMContent TEXT NOT NULL, + UTMTerm TEXT NOT NULL, + FromTag TEXT NOT NULL, + HasGCLID INT NOT NULL, + RefererHash BIGINT NOT NULL, + URLHash BIGINT NOT NULL, + CLID INTEGER NOT NULL +); diff --git a/oxla/queries.sql b/oxla/queries.sql new file mode 100644 index 000000000..bb8499c51 --- /dev/null +++ b/oxla/queries.sql @@ -0,0 +1,43 @@ +SELECT COUNT(*) FROM hits; +SELECT COUNT(*) FROM hits WHERE AdvEngineID <> 0; +SELECT SUM(AdvEngineID), COUNT(*), AVG(ResolutionWidth) FROM hits; +SELECT AVG(UserID) FROM hits; +SELECT COUNT(DISTINCT UserID) FROM hits; +SELECT COUNT(DISTINCT SearchPhrase) FROM hits; +SELECT MIN(EventDate), MAX(EventDate) FROM hits; +SELECT AdvEngineID, COUNT(*) FROM hits WHERE AdvEngineID <> 0 GROUP BY AdvEngineID ORDER BY COUNT(*) DESC; +SELECT RegionID, COUNT(DISTINCT UserID) AS u FROM hits GROUP BY RegionID ORDER BY u DESC LIMIT 10; +SELECT RegionID, SUM(AdvEngineID), COUNT(*) AS c, AVG(ResolutionWidth), COUNT(DISTINCT UserID) FROM hits GROUP BY RegionID ORDER BY c DESC LIMIT 10; +SELECT MobilePhoneModel, COUNT(DISTINCT UserID) AS u FROM hits WHERE MobilePhoneModel <> '' GROUP BY MobilePhoneModel ORDER BY u DESC LIMIT 10; +SELECT MobilePhone, MobilePhoneModel, COUNT(DISTINCT UserID) AS u FROM hits WHERE MobilePhoneModel <> '' GROUP BY MobilePhone, MobilePhoneModel ORDER BY u DESC LIMIT 10; +SELECT SearchPhrase, COUNT(*) AS c FROM hits WHERE SearchPhrase <> '' GROUP BY SearchPhrase ORDER BY c DESC LIMIT 10; +SELECT SearchPhrase, COUNT(DISTINCT UserID) AS u FROM hits WHERE SearchPhrase <> '' GROUP BY SearchPhrase ORDER BY u DESC LIMIT 10; +SELECT SearchEngineID, SearchPhrase, COUNT(*) AS c FROM hits WHERE SearchPhrase <> '' GROUP BY SearchEngineID, SearchPhrase ORDER BY c DESC LIMIT 10; +SELECT UserID, COUNT(*) FROM hits GROUP BY UserID ORDER BY COUNT(*) DESC LIMIT 10; +SELECT UserID, SearchPhrase, COUNT(*) FROM hits GROUP BY UserID, SearchPhrase ORDER BY COUNT(*) DESC LIMIT 10; +SELECT UserID, SearchPhrase, COUNT(*) FROM hits GROUP BY UserID, SearchPhrase LIMIT 10; +SELECT UserID, extract(minute FROM EventTime) AS m, SearchPhrase, COUNT(*) FROM hits GROUP BY UserID, m, SearchPhrase ORDER BY COUNT(*) DESC LIMIT 10; +SELECT UserID FROM hits WHERE UserID = 435090932899640449; +SELECT COUNT(*) FROM hits WHERE URL LIKE '%google%'; +SELECT NULL; +SELECT NULL; +SELECT * FROM hits WHERE URL LIKE '%google%' ORDER BY EventTime LIMIT 10; +SELECT SearchPhrase FROM hits WHERE SearchPhrase <> '' ORDER BY EventTime LIMIT 10; +SELECT SearchPhrase FROM hits WHERE SearchPhrase <> '' ORDER BY SearchPhrase LIMIT 10; +SELECT SearchPhrase FROM hits WHERE SearchPhrase <> '' ORDER BY EventTime, SearchPhrase LIMIT 10; +SELECT CounterID, AVG(length(URL)) AS l, COUNT(*) AS c FROM hits WHERE URL <> '' GROUP BY CounterID HAVING COUNT(*) > 100000 ORDER BY l DESC LIMIT 25; +SELECT NULL; +SELECT SUM(ResolutionWidth), SUM(ResolutionWidth + 1), SUM(ResolutionWidth + 2), SUM(ResolutionWidth + 3), SUM(ResolutionWidth + 4), SUM(ResolutionWidth + 5), SUM(ResolutionWidth + 6), SUM(ResolutionWidth + 7), SUM(ResolutionWidth + 8), SUM(ResolutionWidth + 9), SUM(ResolutionWidth + 10), SUM(ResolutionWidth + 11), SUM(ResolutionWidth + 12), SUM(ResolutionWidth + 13), SUM(ResolutionWidth + 14), SUM(ResolutionWidth + 15), SUM(ResolutionWidth + 16), SUM(ResolutionWidth + 17), SUM(ResolutionWidth + 18), SUM(ResolutionWidth + 19), SUM(ResolutionWidth + 20), SUM(ResolutionWidth + 21), SUM(ResolutionWidth + 22), SUM(ResolutionWidth + 23), SUM(ResolutionWidth + 24), SUM(ResolutionWidth + 25), SUM(ResolutionWidth + 26), SUM(ResolutionWidth + 27), SUM(ResolutionWidth + 28), SUM(ResolutionWidth + 29), SUM(ResolutionWidth + 30), SUM(ResolutionWidth + 31), SUM(ResolutionWidth + 32), SUM(ResolutionWidth + 33), SUM(ResolutionWidth + 34), SUM(ResolutionWidth + 35), SUM(ResolutionWidth + 36), SUM(ResolutionWidth + 37), SUM(ResolutionWidth + 38), SUM(ResolutionWidth + 39), SUM(ResolutionWidth + 40), SUM(ResolutionWidth + 41), SUM(ResolutionWidth + 42), SUM(ResolutionWidth + 43), SUM(ResolutionWidth + 44), SUM(ResolutionWidth + 45), SUM(ResolutionWidth + 46), SUM(ResolutionWidth + 47), SUM(ResolutionWidth + 48), SUM(ResolutionWidth + 49), SUM(ResolutionWidth + 50), SUM(ResolutionWidth + 51), SUM(ResolutionWidth + 52), SUM(ResolutionWidth + 53), SUM(ResolutionWidth + 54), SUM(ResolutionWidth + 55), SUM(ResolutionWidth + 56), SUM(ResolutionWidth + 57), SUM(ResolutionWidth + 58), SUM(ResolutionWidth + 59), SUM(ResolutionWidth + 60), SUM(ResolutionWidth + 61), SUM(ResolutionWidth + 62), SUM(ResolutionWidth + 63), SUM(ResolutionWidth + 64), SUM(ResolutionWidth + 65), SUM(ResolutionWidth + 66), SUM(ResolutionWidth + 67), SUM(ResolutionWidth + 68), SUM(ResolutionWidth + 69), SUM(ResolutionWidth + 70), SUM(ResolutionWidth + 71), SUM(ResolutionWidth + 72), SUM(ResolutionWidth + 73), SUM(ResolutionWidth + 74), SUM(ResolutionWidth + 75), SUM(ResolutionWidth + 76), SUM(ResolutionWidth + 77), SUM(ResolutionWidth + 78), SUM(ResolutionWidth + 79), SUM(ResolutionWidth + 80), SUM(ResolutionWidth + 81), SUM(ResolutionWidth + 82), SUM(ResolutionWidth + 83), SUM(ResolutionWidth + 84), SUM(ResolutionWidth + 85), SUM(ResolutionWidth + 86), SUM(ResolutionWidth + 87), SUM(ResolutionWidth + 88), SUM(ResolutionWidth + 89) FROM hits; +SELECT SearchEngineID, ClientIP, COUNT(*) AS c, SUM(IsRefresh), AVG(ResolutionWidth) FROM hits WHERE SearchPhrase <> '' GROUP BY SearchEngineID, ClientIP ORDER BY c DESC LIMIT 10; +SELECT WatchID, ClientIP, COUNT(*) AS c, SUM(IsRefresh), AVG(ResolutionWidth) FROM hits WHERE SearchPhrase <> '' GROUP BY WatchID, ClientIP ORDER BY c DESC LIMIT 10; +SELECT WatchID, ClientIP, COUNT(*) AS c, SUM(IsRefresh), AVG(ResolutionWidth) FROM hits GROUP BY WatchID, ClientIP ORDER BY c DESC LIMIT 10; +SELECT URL, COUNT(*) AS c FROM hits GROUP BY URL ORDER BY c DESC LIMIT 10; +SELECT 1, URL, COUNT(*) AS c FROM hits GROUP BY 1, URL ORDER BY c DESC LIMIT 10; +SELECT ClientIP, ClientIP - 1, ClientIP - 2, ClientIP - 3, COUNT(*) AS c FROM hits GROUP BY ClientIP, ClientIP - 1, ClientIP - 2, ClientIP - 3 ORDER BY c DESC LIMIT 10; +SELECT URL, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND DontCountHits = 0 AND IsRefresh = 0 AND URL <> '' GROUP BY URL ORDER BY PageViews DESC LIMIT 10; +SELECT Title, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND DontCountHits = 0 AND IsRefresh = 0 AND Title <> '' GROUP BY Title ORDER BY PageViews DESC LIMIT 10; +SELECT URL, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND IsRefresh = 0 AND IsLink <> 0 AND IsDownload = 0 GROUP BY URL ORDER BY PageViews DESC LIMIT 10 OFFSET 1000; +SELECT TraficSourceID, SearchEngineID, AdvEngineID, CASE WHEN (SearchEngineID = 0 AND AdvEngineID = 0) THEN Referer ELSE '' END AS Src, URL AS Dst, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND IsRefresh = 0 GROUP BY TraficSourceID, SearchEngineID, AdvEngineID, Src, Dst ORDER BY PageViews DESC LIMIT 10 OFFSET 1000; +SELECT URLHash, EventDate, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND IsRefresh = 0 AND TraficSourceID IN (-1, 6) AND RefererHash = 3594120000172545465 GROUP BY URLHash, EventDate ORDER BY PageViews DESC LIMIT 10 OFFSET 100; +SELECT WindowClientWidth, WindowClientHeight, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND IsRefresh = 0 AND DontCountHits = 0 AND URLHash = 2868770270353813622 GROUP BY WindowClientWidth, WindowClientHeight ORDER BY PageViews DESC LIMIT 10 OFFSET 10000; +SELECT NULL; \ No newline at end of file diff --git a/oxla/results/c6a.4xlarge.json b/oxla/results/c6a.4xlarge.json new file mode 100644 index 000000000..55aa2385d --- /dev/null +++ b/oxla/results/c6a.4xlarge.json @@ -0,0 +1,58 @@ +{ + "system": "Oxla.com", + "date": "2024-01-31", + "machine": "c6a.4xlarge, 500gb gp2", + "cluster_size": 1, + "comment": "ingests data only from non-compressed cvs. data should be ingested in chunks < ~5Gb", + + "tags": ["C", "analytical", "somewhat PostgreSQL compatible"], + + "load_time": 584.88, + "data_size": 83948840996, + + "result": [ + [0.050129,0.022855,0.022903], + [0.057503,0.015481,0.015516], + [0.094277,0.025541,0.026299], + [0.16258,0.024306,0.023829], + [0.039942,0.021789,0.02218], + [0.1374,0.101147,0.099119], + [0.059388,0.025719,0.0264], + [0.033712,0.017465,0.0184], + [0.135859,0.096702,0.095512], + [0.171016,0.155303,0.154772], + [0.190669,0.182083,0.183751], + [0.22111,0.18886,0.193252], + [2.52142,2.55214,2.54007], + [2.6807,2.5843,2.63534], + [2.75055,2.68715,2.67322], + [1.52986,1.47056,1.49706], + [8.22161,7.84746,7.57008], + [7.06027,7.33078,6.88351], + [10.5416,10.2955,10.2149], + [0.053765,0.02466,0.023807], + [2.67538,2.54948,2.71025], + [null,null,null], + [null,null,null], + [8.75207,8.09075,8.26788], + [0.359349,0.31487,0.312975], + [0.331405,0.339576,0.332647], + [0.351841,0.340408,0.325682], + [1.62115,1.67895,1.74872], + [null,null,null], + [1.58662,1.58356,1.58278], + [0.632047,0.553994,0.586148], + [1.15181,1.14935,1.10892], + [13.1952,13.0677,12.6957], + [15.9073,13.0187,12.6488], + [12.3274,13.7521,14.7386], + [1.27877,1.35705,1.24621], + [1.011,0.955655,0.967898], + [3.46346,0.841062,0.878294], + [0.867865,0.885799,0.812358], + [4.55556,1.79754,1.75293], + [4.00301,0.064817,0.062893], + [0.163954,0.063076,0.060033], + [null,null,null] + ] +} diff --git a/oxla/run.sh b/oxla/run.sh new file mode 100755 index 000000000..5be64736a --- /dev/null +++ b/oxla/run.sh @@ -0,0 +1,13 @@ +#!/bin/bash + +TRIES=3 + +cat queries.sql | while read query; do + sync + echo 3 | sudo tee /proc/sys/vm/drop_caches + + echo "$query"; + for i in $(seq 1 $TRIES); do + sudo psql -h localhost -p 5432 -U postgres -d test -t -c '\timing' -c "$query" | grep 'Time' + done; +done;