diff options
| -rw-r--r-- | share/man/man7/tuning.7 | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/share/man/man7/tuning.7 b/share/man/man7/tuning.7 index a3cf6cd8ded5..2b4b9d9cc188 100644 --- a/share/man/man7/tuning.7 +++ b/share/man/man7/tuning.7 @@ -266,13 +266,15 @@ with softupdates can be turned on using the .Fl U option to -.Xr newfs 8 ) . +.Xr newfs 8 , +and +.Xr sysinstall 8 +will typically enable softupdates automatically for non-root filesystems). Softupdates drastically improves meta-data performance, mainly file creation and deletion. -We recommend enabling softupdates on all of your -filesystems. -There are two downsides to softupdates that you should be -aware of. +We recommend enabling softupdates on most filesystems; however, there +are two limitations to softupdates that you should be aware of when +determining whether to use softupdates on a filesystem. First, softupdates guarantees filesystem consistency in the case of a crash but could very easily be several seconds (even a minute!) behind updating the physical disk. @@ -288,6 +290,8 @@ can run it out of space and cause the update to fail. A number of run-time .Xr mount 8 options exist that can help you tune the system. +For this reason, softupdates will not be enabled on the root file system +during a typicaly install. The most obvious and most dangerous one is .Cm async . Don't ever use it, it is far too dangerous. |