{
  "$type": "site.standard.document",
  "bskyPostRef": {
    "cid": "bafyreihyedvxjf3ftqc55cggenzleia2br4kbju6jntbds6d33547w6fne",
    "uri": "at://did:plc:pi6woz4d47bkuws673w2il2r/app.bsky.feed.post/3mkuzxjufhs42"
  },
  "path": "/t/conduit-to-yield-first-lines-from-file-without-leaking-space-or-file-handles/14030#post_9",
  "publishedAt": "2026-05-02T15:15:58.000Z",
  "site": "https://discourse.haskell.org",
  "tags": [
    "concatMap",
    "here"
  ],
  "textContent": "`jet-stream` wouldn’t work well with thousands of files because IIRC the way I implemented it concatenation of large numbers of streams will cause a quadratic slowdown. It seems that concatMap from `streamly` doesn’t have this problem, judging from the note here.",
  "title": "Conduit to yield first lines from file without leaking space or file handles?"
}