Hi: I'm evaluating cachefilesd to speed up my NFS usage. I've installed it on the client (cachefilesd.x86_64 0.10.2-1.el6 on CentOS 6.5, kernel version 2.6.32-431.23.3.el6.x86_64) and mounted NFS to use it. I'm not seeing any performance improvement, so I checked the stats: Invals : n=17536803 run=0 I believe that all these invalidations are causing the cache to always be flushed. Nothing should be doing any writes to the NFS server, so I'm trying to figure out where these invalidations are coming from. How can I find the source of these invalidations? Complete stats: FS-Cache statistics Cookies: idx=4 dat=15 spc=0 Objects: alc=0 nal=0 avl=0 ded=0 ChkAux : non=0 ok=0 upd=0 obs=0 Pages : mrk=0 unc=0 Acquire: n=19 nul=0 noc=0 ok=19 nbf=0 oom=0 Lookups: n=0 neg=0 pos=0 crt=0 tmo=0 Invals : n=17536803 run=0 Updates: n=0 nul=0 run=0 Relinqs: n=2 nul=0 wcr=0 rtr=0 AttrChg: n=0 ok=0 nbf=0 oom=0 run=0 Allocs : n=0 ok=0 wt=0 nbf=0 int=0 Allocs : ops=0 owt=0 abt=0 Retrvls: n=7560746 ok=0 wt=0 nod=0 nbf=7560746 int=0 oom=0 Retrvls: ops=0 owt=0 abt=0 Stores : n=0 ok=0 agn=0 nbf=0 oom=0 Stores : ops=0 run=0 pgs=0 rxd=0 olm=0 VmScan : nos=0 gon=0 bsy=0 can=0 wt=0 Ops : pend=0 run=0 enq=0 can=0 rej=0 Ops : dfr=0 rel=0 gc=0 CacheOp: alo=0 luo=0 luc=0 gro=0 CacheOp: inv=0 upo=0 dro=0 pto=0 atc=0 syn=0 CacheOp: rap=0 ras=0 alp=0 als=0 wrp=0 ucp=0 dsp=0 -- Linux-cachefs mailing list Linux-cachefs@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cachefs
