Mo :ferris: :tux: @ FOSDEM on Nostr: #RustLang performance tip 🚀 Rewinding, truncating and then writing to an open file ...
#RustLang performance tip 🚀
Rewinding, truncating and then writing to an open file is always faster than opening the file every time.
For small files, it can be about 3x faster.
If you write a file multiple times, keep it open and reuse it, but don't forget to rewind and truncate.
Shouldn't be specific to Rust.
Published at
2024-08-29 00:10:02Event JSON
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"content": "#RustLang performance tip 🚀\n\nRewinding, truncating and then writing to an open file is always faster than opening the file every time.\n\nFor small files, it can be about 3x faster.\n\nIf you write a file multiple times, keep it open and reuse it, but don't forget to rewind and truncate.\n\nShouldn't be specific to Rust.\n\nhttps://cdn.fosstodon.org/media_attachments/files/113/042/370/236/545/862/original/2fe2d525da11a3c5.png\n\nhttps://cdn.fosstodon.org/media_attachments/files/113/042/372/918/233/825/original/a5a0dec95bce1a65.png",
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