13a5829feSDavid Howells# SPDX-License-Identifier: GPL-2.0-only 23a5829feSDavid Howells 33a5829feSDavid Howellsconfig NETFS_SUPPORT 4*b71c7912SDavid Howells tristate 53a5829feSDavid Howells help 63a5829feSDavid Howells This option enables support for network filesystems, including 73a5829feSDavid Howells helpers for high-level buffered I/O, abstracting out read 83a5829feSDavid Howells segmentation, local caching and transparent huge page support. 9289af54cSDavid Howells 10289af54cSDavid Howellsconfig NETFS_STATS 11289af54cSDavid Howells bool "Gather statistical information on local caching" 12289af54cSDavid Howells depends on NETFS_SUPPORT && PROC_FS 13289af54cSDavid Howells help 14289af54cSDavid Howells This option causes statistical information to be gathered on local 15289af54cSDavid Howells caching and exported through file: 16289af54cSDavid Howells 17289af54cSDavid Howells /proc/fs/fscache/stats 18289af54cSDavid Howells 19289af54cSDavid Howells The gathering of statistics adds a certain amount of overhead to 20289af54cSDavid Howells execution as there are a quite a few stats gathered, and on a 21289af54cSDavid Howells multi-CPU system these may be on cachelines that keep bouncing 22289af54cSDavid Howells between CPUs. On the other hand, the stats are very useful for 23289af54cSDavid Howells debugging purposes. Saying 'Y' here is recommended. 24