Clocksource allows access to alternate clocksources like the TSC on your Intel x86 CPU. Most modern processors support 'constant_tsc' allowing us to use this counter as a high resolution clock. The cost of reading this counter can be much lower than calls to 'clock_gettime()' - especially on virtualized environments.
Unfortunately, this requires we use nightly rust until the asm!() macro is stabilized. We provide fallback for users on stable rust, this should allow zero-cost abstraction of clock_gettime() for stable builds without benefit of the high-performance timing.
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add clocksource to your dependencies and start using it
The API documentation of this library can be found at docs.rs/clocksource.
Licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.