IO_uring, NVMe & Other Block + Device Mapper Changes Merged For Linux 7.2
… The NVMe code for Linux 7.2 includes adding per-controller admin and I/O timeout sysfs attributes. …
Search
Tracked topic
NVMe
Linux 7.3 To Overcome "Significant Bottleneck" For Small I/O With PCIe Gen5 NVMe SSDs
… Bytedance engineer Fengnan Chang noticed a "significant bottleneck" when carrying out 4K random reads on Gen5 NVMe SSDs. …
Linux 7.2 Optimization Shows +5% IOPS For EXT4 & XFS After Moving Around Two Lines Of Code
… In high-IOPS scenarios 4k randread NVMe polling via io uring the pointless memset wasted memory write bandwidth; this improves IOPS by about 5% on ext4 and xfs." A 5% uplift to IOPS isn't bad for such a straight forward optimization. …