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38027c8f52
This PR brings two optimizations mainly for page-cache build-up and how to avoid getting OOM killed in the process. Although these memories are reclaimable Linux is not fast enough to reclaim them as needed on a very busy system. fadvise is a system call implemented in Linux to advise page-cache to avoid overload as we get significant amount of requests on the server. - FADV_SEQUENTIAL tells that all I/O from now is going to be sequential, allowing for more resposive throughput. - FADV_NOREUSE tells kernel to start removing things for this 'fd' from page-cache. |
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| .. | ||
| directio_darwin.go | ||
| directio_unix.go | ||
| directio_unsupported.go | ||
| disk_test.go | ||
| disk_unix.go | ||
| disk_windows.go | ||
| disk.go | ||
| fdatasync_linux.go | ||
| fdatasync_unix.go | ||
| fdatasync_unsupported.go | ||
| health.go | ||
| root_disk.go | ||
| stat_bsd.go | ||
| stat_freebsd.go | ||
| stat_linux_32bit.go | ||
| stat_linux_s390x.go | ||
| stat_linux.go | ||
| stat_netbsd.go | ||
| stat_openbsd.go | ||
| stat_solaris.go | ||
| stat_windows.go | ||
| type_bsd.go | ||
| type_linux.go | ||
| type_windows.go | ||