Trond Myklebust wrote: > On Fri, 2009-06-12 at 12:30 -0700, Amit Gud wrote: >> We definitely want lookup caching turned on, always, including both >> positive and negative caching. But, we need to see new files, unlinks, >> and renames much quicker than a second. > > Then use the lookupcache option, since that's what it is for. > Sorry, I don't understand. Copying from your last mail: > Secondly, we have already introduced finer control over the lookup > caching as of Linux 2.6.28 and newer: > - if you want to ensure that machine A always see new files and > links immediately once they have been created, then > '-olookupcache=positive' should turn off negative dentry > caching. > - if you also want to ensure that it immediately sees renames, > unlinks and such, then '-olookupcache=none' will turn off lookup > caching altogether. How is it possible to _not_ disable any caching (positive or negative dentries) and still be able to see renames, unlinks and such in << 1s? AG -- May the source be with you. http://www.cis.ksu.edu/~gud -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
