162306a36Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ci 362306a36Sopenharmony_ciconfig NETFS_SUPPORT 462306a36Sopenharmony_ci tristate 562306a36Sopenharmony_ci help 662306a36Sopenharmony_ci This option enables support for network filesystems, including 762306a36Sopenharmony_ci helpers for high-level buffered I/O, abstracting out read 862306a36Sopenharmony_ci segmentation, local caching and transparent huge page support. 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ciconfig NETFS_STATS 1162306a36Sopenharmony_ci bool "Gather statistical information on local caching" 1262306a36Sopenharmony_ci depends on NETFS_SUPPORT && PROC_FS 1362306a36Sopenharmony_ci help 1462306a36Sopenharmony_ci This option causes statistical information to be gathered on local 1562306a36Sopenharmony_ci caching and exported through file: 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ci /proc/fs/fscache/stats 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ci The gathering of statistics adds a certain amount of overhead to 2062306a36Sopenharmony_ci execution as there are a quite a few stats gathered, and on a 2162306a36Sopenharmony_ci multi-CPU system these may be on cachelines that keep bouncing 2262306a36Sopenharmony_ci between CPUs. On the other hand, the stats are very useful for 2362306a36Sopenharmony_ci debugging purposes. Saying 'Y' here is recommended. 24