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5 changes: 5 additions & 0 deletions bench/cardano-timeseries-io/CHANGELOG.md
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# Revision history for cardano-timeseries-io

## 1.0.0 -- March 2026

* First version.
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Apache License
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Copyright 2023 Input Output Global Inc (IOG), 2023-2026 Intersect.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
28 changes: 28 additions & 0 deletions bench/cardano-timeseries-io/README.md
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# Cardano Timeseries I/O

## What it does

The primary goal of the project is to serve as a standalone library for `cardano-tracer`, providing realtime metric storage & query.

The library exposes the following components:
- An interface of metric stores together with multiple implementations.
- A low-level unambiguous language & its interpreter against a metric store — for querying metrics.
- A high-level user-facing language & its elaborator to the low-level one.

On top of the library the project provides a simple CLI for reading a store off disk & executing a query against it, optionally interactively.

## CLI Syntax

```
Usage: cardano-timeseries-io FILE ((-x|--execute QUERY) | (-i|--interactive))

Run a query against a metric store

Available options:
-x,--execute QUERY Execute the query
-i,--interactive Enter REPL
-h,--help Show this help text
```

## Build flags
- _profiling_ for enabling GHC profiling support.
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{-# LANGUAGE OverloadedRecordDot #-}

module Main where

import Cardano.Timeseries.AsText (showT)
import Cardano.Timeseries.CLI
import Cardano.Timeseries.Common
import Cardano.Timeseries.Domain.Types (Timestamp)
import Cardano.Timeseries.Interface (execute)
import Cardano.Timeseries.Interp.Config (Config (..))
import Cardano.Timeseries.Store

import Data.Foldable
import qualified Data.Map as Map
import Data.Text (Text)
import qualified Data.Text.IO as Text
import Options.Applicative

interpConfig :: Config
interpConfig = Config {defaultRangeSamplingRateMillis = 15 * 1000}

now :: Timestamp
now = 0

main :: IO ()
main = do
cmd <- execParser parseCommand
store <- readStore cmd.store
putStrLn "Metrics:"
for_ (Map.keys store) $ \k ->
Text.putStrLn (" — " <> k <> "[" <> showMaybe (earliest store k) <> "ms; " <> showMaybe (latest store k) <> "ms]")
case cmd.mode of
Interactive -> repl store interpConfig now
Execute query -> printExecutionResult $ execute store interpConfig now query
where
showMaybe :: Show a => Maybe a -> Text
showMaybe Nothing = "N/A"
showMaybe (Just x) = showT x

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module Cardano.Timeseries.CLI(Mode(..), Command(..), parseCommand) where
import Data.Text (Text)
import Options.Applicative

data Mode = Execute Text | Interactive

data Command = Command {
store :: FilePath,
mode :: Mode
}

parseExecute :: Parser Mode
parseExecute = Execute <$> option str (short 'x' <> long "execute" <> metavar "QUERY" <> help "Execute the query")

parseInteractive :: Parser Mode
parseInteractive = flag' Interactive (short 'i' <> long "interactive" <> help "Enter REPL")

parseMode :: Parser Mode
parseMode = parseExecute <|> parseInteractive

parseStore :: Parser FilePath
parseStore = argument str (metavar "FILE")

parseCommand :: ParserInfo Command
parseCommand = info (Command <$> parseStore <*> parseMode <**> helper)
(fullDesc <> progDesc "Run a query against a metric store")
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{-# LANGUAGE FlexibleContexts #-}
{- HLINT ignore "Use print" -}

module Cardano.Timeseries.Common(readStore, repl, printInterpResult, printExecutionResult) where

import Cardano.Logging.Resources (ResourceStats, Resources (..))
import Cardano.Timeseries.AsText
import Cardano.Timeseries.Domain.Types (Timestamp)
import Cardano.Timeseries.Elab (elab, initialSt)
import Cardano.Timeseries.Import.PlainCBOR
import Cardano.Timeseries.Interp (interp)
import Cardano.Timeseries.Interp.Config (Config (..))
import Cardano.Timeseries.Interp.Types (InterpError)
import Cardano.Timeseries.Interp.Value (Value)
import Cardano.Timeseries.Store
import Cardano.Timeseries.Store.Flat (Flat)
import Cardano.Timeseries.Store.Flat.Parser (double)
import qualified Cardano.Timeseries.Store.Flat.Parser as Flat.Parser
import Cardano.Timeseries.Store.Tree (Tree, fromFlat)
import Cardano.Timeseries.Surface.Expr.Parser (Parser)
import qualified Cardano.Timeseries.Surface.Expr.Parser as Surface.Parser

import Control.DeepSeq (force)
import Control.Monad (forever)
import Control.Monad.Except (runExceptT)
import Control.Monad.State.Strict (evalState)
import Data.Foldable (traverse_)
import Data.Functor (void)
import qualified Data.Text as Text
import qualified Data.Text.IO as Text
import System.Exit (die)
import System.FilePath (takeExtension)
import System.IO (hFlush, stdout)
import Text.Megaparsec hiding (count)
import Text.Megaparsec.Char (newline, space, space1)
import Cardano.Timeseries.Interface (ExecutionError)

_printStore :: Flat Double -> IO ()
_printStore = traverse_ print

_printStats :: ResourceStats -> IO ()
_printStats stats =
putStrLn $ "Alloc: " <> show ((fromIntegral (rAlloc stats) :: Double) / 1024 / 1024) <> "MB\n"
<> "Live: " <> show ((fromIntegral (rLive stats) :: Double) / 1024 / 1024) <> "MB\n"
<> "Heap: " <> show ((fromIntegral (rHeap stats) :: Double) / 1024 / 1024) <> "MB\n"
<> "RSS: " <> show ((fromIntegral (rRSS stats) :: Double) / 1024 / 1024) <> "MB"

printInterpResult :: Either InterpError Value -> IO ()
printInterpResult (Left err) = Text.putStrLn $ asText err
printInterpResult (Right ok) = print ok

printExecutionResult :: Either ExecutionError Value -> IO ()
printExecutionResult (Left err) = Text.putStrLn $ asText err
printExecutionResult (Right ok) = print ok

repl :: Store s Double => s -> Config -> Timestamp -> IO ()
repl store interpCfg now = forever $ do
-- Just stats <- readResourceStats
-- putStrLn "----------"
-- printStats stats
putStrLn $ "Number of store entries: " <> show (count store)
putStrLn "----------"
putStr "> "
hFlush stdout
queryString <- Text.getLine
case parse (Surface.Parser.expr <* space <* eof) "input" queryString of
Left err -> putStrLn (errorBundlePretty err)
Right surfaceQuery -> do
-- putStrLn ("Surface expr: " <> show surfaceQuery)
case evalState (runExceptT (elab surfaceQuery)) initialSt of
Left err -> Text.putStrLn err
Right query -> do
Text.putStrLn (showT query)
printInterpResult (evalState (runExceptT $ interp interpCfg store mempty query now) 0)

whitespace :: Parser ()
whitespace = skipMany (try space1 <|> void newline)

readStore :: FilePath -> IO (Tree Double)
readStore path | takeExtension path == ".cbor" = do
content <- readFileSnapshots path
putStrLn "Read the snapshots CBOR file!"
let store = {-# SCC "XXX" #-} force $ fromFlat $ snapshotsToFlatStore content
putStrLn "Created a store from CBOR!"
pure store
readStore path | takeExtension path == ".txt" = do
content <- Text.lines <$> Text.readFile path
case traverse (parse (Flat.Parser.point double <* whitespace <* eof) "input") content of
Left err -> die (errorBundlePretty err)
Right store -> pure $ fromFlat store
readStore path = die $ "Unknown extension: " <> takeExtension path
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