Hi David, > > You might be able to do this by ssh'ing in and running: > > > > filewatch /proc/fs/fscache/stats > > > > Where filewatch is the attached program. This has an advantage over > > watch+cat in that it doesn't have to keep forking and execing. [...] > Will compile and run filewatch on our 4 servers asap. > > I'll keep you updated. > > Regards, Ok installed and running. For the record here is the status of the fscache stats file on our 4 servers (they already show a lot of 'BUG: Bad page state in process lighttpd pfn:32ff4a + stack trace' ) streamod-40.itx1:~# cat /proc/fs/fscache/stats FS-Cache statistics Cookies: idx=3 dat=26254 spc=0 Objects: alc=26257 nal=0 avl=26257 ded=25727 ChkAux : non=0 ok=17074 upd=0 obs=343 Pages : mrk=1203688704 unc=1201839819 Acquire: n=26257 nul=0 noc=0 ok=26257 nbf=0 oom=0 Lookups: n=26257 neg=9181 pos=17076 crt=9181 tmo=0 Updates: n=0 nul=0 run=0 Relinqs: n=25728 nul=0 wcr=0 rtr=464 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=1326511 ok=1302022 wt=862 nod=24489 nbf=0 int=0 oom=0 Retrvls: ops=1326511 owt=506 abt=0 Stores : n=66031403 ok=66031403 agn=0 nbf=0 oom=0 Stores : ops=218585 run=66155786 pgs=65937201 rxd=66031403 olm=0 VmScan : nos=1201725393 gon=93 bsy=15400 can=94202 Ops : pend=506 run=1545096 enq=1244998567 can=0 rej=0 Ops : dfr=85 rel=1545096 gc=85 CacheOp: alo=0 luo=0 luc=0 gro=0 CacheOp: 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 streamod-41.itx1:~# cat /proc/fs/fscache/stats FS-Cache statistics Cookies: idx=3 dat=26270 spc=0 Objects: alc=26273 nal=0 avl=26273 ded=24213 ChkAux : non=0 ok=17012 upd=0 obs=229 Pages : mrk=1221914964 unc=1220078120 Acquire: n=26273 nul=0 noc=0 ok=26273 nbf=0 oom=0 Lookups: n=26273 neg=9259 pos=17014 crt=9259 tmo=0 Updates: n=0 nul=0 run=0 Relinqs: n=24214 nul=0 wcr=0 rtr=437 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=1294914 ok=1271080 wt=951 nod=23834 nbf=0 int=0 oom=0 Retrvls: ops=1294914 owt=565 abt=0 Stores : n=64925316 ok=64925316 agn=0 nbf=0 oom=0 Stores : ops=236111 run=65068460 pgs=64832349 rxd=64925316 olm=0 VmScan : nos=1219973341 gon=65 bsy=13770 can=92967 Ops : pend=565 run=1531025 enq=1262948191 can=0 rej=0 Ops : dfr=97 rel=1531025 gc=97 CacheOp: alo=0 luo=0 luc=0 gro=0 CacheOp: 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 streamod-140.cap:~# cat /proc/fs/fscache/stats FS-Cache statistics Cookies: idx=3 dat=8793 spc=0 Objects: alc=8796 nal=0 avl=8796 ded=6870 ChkAux : non=0 ok=5588 upd=0 obs=119 Pages : mrk=359824477 unc=357898794 Acquire: n=8796 nul=0 noc=0 ok=8796 nbf=0 oom=0 Lookups: n=8796 neg=3206 pos=5590 crt=3206 tmo=0 Updates: n=0 nul=0 run=0 Relinqs: n=6871 nul=0 wcr=0 rtr=116 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=389910 ok=381408 wt=626 nod=8502 nbf=0 int=0 oom=0 Retrvls: ops=389910 owt=256 abt=0 Stores : n=22961829 ok=22961829 agn=0 nbf=0 oom=0 Stores : ops=84948 run=23045952 pgs=22961004 rxd=22961829 olm=0 VmScan : nos=357890966 gon=0 bsy=2 can=825 Ops : pend=256 run=474858 enq=376985573 can=0 rej=0 Ops : dfr=29 rel=474858 gc=29 CacheOp: alo=0 luo=0 luc=0 gro=0 CacheOp: 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 streamod-141.cap:~# cat /proc/fs/fscache/stats FS-Cache statistics Cookies: idx=3 dat=7796 spc=0 Objects: alc=7799 nal=0 avl=7798 ded=5782 ChkAux : non=0 ok=4920 upd=0 obs=132 Pages : mrk=303927659 unc=301985985 Acquire: n=7799 nul=0 noc=0 ok=7799 nbf=0 oom=0 Lookups: n=7799 neg=2877 pos=4922 crt=2877 tmo=0 Updates: n=0 nul=0 run=0 Relinqs: n=5783 nul=0 wcr=1 rtr=91 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=307171 ok=299961 wt=423 nod=7210 nbf=0 int=0 oom=0 Retrvls: ops=307171 owt=198 abt=0 Stores : n=20256611 ok=20256611 agn=0 nbf=0 oom=0 Stores : ops=77451 run=20307122 pgs=20229671 rxd=20256611 olm=0 VmScan : nos=301953336 gon=12 bsy=3766 can=26940 Ops : pend=198 run=384622 enq=321559214 can=0 rej=0 Ops : dfr=21 rel=384619 gc=21 CacheOp: alo=0 luo=0 luc=0 gro=0 CacheOp: 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 Regards, -- RD -- Linux-cachefs mailing list Linux-cachefs@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cachefs
