The creator of IO_ARING and the accompanying block subsystem in the Linux kernel, Jens Axboe, has made a significant advancement in improving the number of input/output operations per second (iPS). By spending just five minutes on coding, Axboe was able to increase the iPS by at least 6%, with the potential of even greater improvements on fully-configured Linux kernels. This breakthrough was achieved by implementing a caching mechanism for the current time request in the block subsystem, a step that was considered unnecessary due to the lack of nanosecond accuracy requirements in the block system.
Axboe expressed regret over not implementing this idea five years ago when it first occurred to him. He shared his achievement on Twitter, acknowledging that the realization of this concept only took a mere five minutes, adding to his surprise.