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This new version of Glommio brings new APIs, performance improvements, stability fixes, and refactoring, making Glommio's APIs more discoverable and closer to the other async crates such as async-std or Tokio.

Notable changes:

  • [#427], [#480], [#500]: Executor builders are now more reliable and flexible;
  • [#412], [#413] : Task<T>::local() and Local::local() are removed in favor of the glommio::spawn_* set of free functions, glommio::executor() is now the main way to interact with the executor;
  • [#414]: Closing a file now returns whether the underlying file descriptor was closed;
  • [#416]: read_many now takes a stream as input instead of an iterator;
  • [#460], [#491]: read_many is now able to limit concurrency based on in-flight IO memory and/or number of in-flight IO requests;
  • [#497]: read_many now uses better, system-specific IO coalescing defaults from sysfs;
  • [#434]: Foreign wakers now trigger a remote preemption, according to their latency requirements;
  • [#449], [#474]: DmaStreamReader may now be consumed trivially without copies;
  • [#462]: GlommioStream is reimplemented using poll+recv for faster network IO;
  • [#463]: IO ring depth is now configurable;
  • [#469]: liburing may now be vendored;
  • [#476], [#496]: Glommio can now collect queued, IO, and scheduler latencies;
  • [#489]: Glommio now detect the proper IO alignments based on sysfs values;
  • [#499], [#517]: A stall detector can now collect stack traces of unyielding tasks;
  • [#501], [#519]: spawn_blocking is now the preferred way to schedule blocking operations;

Rust/Linux support:

The minimum supported kernel remains 5.8, and we now require at least Rust 1.58.

Contributors:

Andrey Lomakin <lomakin.andrey@gmail.com>
Cody P Schafer <dev@codyps.com>
David Blewett <david.blewett@datadoghq.com>
Duarte Nunes <duarte.nunes@datadoghq.com>
Glauber Costa <glauber@chiselstrike.com>
Hippolyte Barraud <hippolyte.barraud@datadoghq.com>
jianghua <jianghua@qiyi.com>
laa <lomakin.andrey@gmail.com>
Matthieu Le brazidec (r3v2d0g) <r3v2d0g@jesus.gg>
Nikolay Kim <fafhrd91@gmail.com>
Ruihang Xia <waynestxia@gmail.com>
Seiichi Uchida <topecongiro@fastmail.com>
thirstycrow <5451vs5451@gmail.com>
trtsl <69097508+trtsl@users.noreply.github.com>
Yongsheng Xu <chuxdesign@hotmail.com>

Thank you to all our contributors!

Source: README.md, updated 2022-02-10