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Diffstat (limited to 'readme.md')
| -rw-r--r-- | readme.md | 21 |
1 files changed, 3 insertions, 18 deletions
@@ -2,22 +2,7 @@ 2. Optional: have [nix](https://nixos.org/nix/) installed. If you *don't* use nix, delete line 3 of `main.hs`. 3. Run `./main.hs` and the server will startup -To bootstrap the db, do `curl -XPOST "localhost:3000/bootstrap"`. +To bootstrap the db, do `curl -XPOST "localhost:3000/bootstrap"`. This takes +like 3 seconds or so. -This takes a while; on my machine it averages 181 records per second. It's IO -bound, and in an un-optimized program GHC on Linux uses a single, blocking IO -manager thread (on Windows it's non-blocking, [apparently][1]). This can be -improved with the [Control.Concurrent][1] module, it which case we could launch -as many IO threads as we want, and do probably 10k records per second. There's -definitely an optimal amount of threads here, we'd have to test to find that. - -*However*, you can watch it bootstrap. In a separate terminal, do `curl -"localhost:3000/count"` to see it updating. New POSTs will also work and update -the database, even while it is bootstrapping, which is kinda cool. - -Try this in bash: - - while sleep 1; do curl -s "localhost:3000/count" | jq '.count'; done - - -[1]: https://www.stackage.org/haddock/lts-10.3/base-4.10.1.0/Control-Concurrent.html#g:10 +See `test.http` for some other examples. |