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https://wiki.qemu.org/Features/IOUring
io_uring is a Linux API for asynchronous I/O. It is designed for higher performance than the older Linux AIO API that QEMU supports. Aarushi Mehta is implementing io_uring support in QEMU as part of the Outreachy internship program.
https://github.com/OSLL/qemu-xtensa/issues/1
Oct 05, 2016 · You might have noticed that ESP8266 support is very rudimentary. Espressif haven't provided any feedback to my request for the hardware specifications of ESP32, I haven't been following ESP32 development/reverse engineering closely and I don't have the hardware ATM.
https://access.redhat.com/articles/41313
Specifically, if qemu-kvm is used with the aio=native IO mode over a sparse device image hosted on the ext4 or xfs filesystem, guest filesystem corruption will occur if partitions are not aligned with the host filesystem block size. Generally, do not use aio=native option along with cache=none for QEMU. Additionally, this issue can be avoided ...
What is QEMU? QEMU is a generic and open source machine emulator and virtualizer.
https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg00179.html
Aug 02, 2019 · This patch series adds support for the newly developed io_uring Linux AIO interface. Linux io_uring is faster than Linux's AIO asynchronous I/O code, offers efficient buffered asynchronous I/O support, the ability to do I/O without performing a system call …
https://turlucode.com/qemu-disk-io-performance-comparison-native-or-threads-windows-10-version/
Jun 09, 2018 · aio=native or aio=threads – Intro. In this post we will compare our Disk IO perfonace given different QEMU architectures such as native or io-threads, and given different chache options.The system used in this test is the following:
https://github.com/qemu/qemu/blob/master/block/linux-aio.c
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