minio/internal/config/api
Harshavardhana 91d8bddbd1
use sendfile/splice implementation to perform DMA (#18411)
sendfile implementation to perform DMA on all platforms

Go stdlib already supports sendfile/splice implementations
for

- Linux
- Windows
- *BSD
- Solaris

Along with this change however O_DIRECT for reads() must be
removed as well since we need to use sendfile() implementation

The main reason to add O_DIRECT for reads was to reduce the
chances of page-cache causing OOMs for MinIO, however it would
seem that avoiding buffer copies from user-space to kernel space
this issue is not a problem anymore.

There is no Go based memory allocation required, and neither
the page-cache is referenced back to MinIO. This page-
cache reference is fully owned by kernel at this point, this
essentially should solve the problem of page-cache build up.

With this now we also support SG - when NIC supports Scatter/Gather
https://en.wikipedia.org/wiki/Gather/scatter_(vector_addressing)
2023-11-10 10:10:14 -08:00
..
api.go Update to minio/pkg/v2 (#17967) 2023-09-04 12:57:37 -07:00
help.go use sendfile/splice implementation to perform DMA (#18411) 2023-11-10 10:10:14 -08:00