[Linux-cluster] GFS RG size (and tuning)

[Jos Vos]

On Fri, Oct 26, 2007 at 07:57:18PM -0400, Wendy Cheng wrote:

> 2. The gfs_scand issue is more to do with the number of glock count. One 
> way to tune this is via purge_glock tunable. There is an old write-up in:
> http://people.redhat.com/wcheng/Patches/GFS/readme.gfs_glock_trimming.R4 
> . It is for RHEL4 but should work the same way for RHEL5.

Unfortunately, no.  The patch applies fine (only with some offsets),
but building results in an error:

  CC [M]  /builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/acl.o
  CC [M]  /builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/bits.o
  CC [M]  /builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/bmap.o
  CC [M]  /builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/daemon.o
  CC [M]  /builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/dio.o
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/dio.c: In function 'stuck_releasepage':
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/dio.c:85: warning: format '%lu' expects type 'long unsigned int', but argument 3 has type 'sector_t'
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/dio.c:96: warning: format '%lu' expects type 'long unsigned int', but argument 4 has type 'u64'
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/dio.c:122: warning: format '%lu' expects type 'long unsigned int', but argument 3 has type 'uint64_t'
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/dio.c:122: warning: format '%lu' expects type 'long unsigned int', but argument 4 has type 'uint64_t'
  CC [M]  /builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/dir.o
  CC [M]  /builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/eaops.o
  CC [M]  /builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/eattr.o
  CC [M]  /builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/file.o
  CC [M]  /builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.o
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.c: In function 'try_purge_iopen':
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.c:2563: error: implicit declaration of function 'gl2gl'
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.c:2563: warning: assignment makes pointer from integer without a cast
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.c: In function 'dump_inode':
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.c:2844: warning: format '%lu' expects type 'long unsigned int', but argument 4 has type 'uint64_t'
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.c:2844: warning: format '%lu' expects type 'long unsigned int', but argument 5 has type 'uint64_t'
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.c:2844: warning: format '%lu' expects type 'long unsigned int', but argument 2 has type 'uint64_t'
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.c:2844: warning: format '%lu' expects type 'long unsigned int', but argument 3 has type 'uint64_t'
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.c: In function 'dump_glock':
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.c:2882: warning: format '%lu' expects type 'long unsigned int', but argument 5 has type 'u64'
/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.c:2882: warning: format '%lu' expects type 'long unsigned int', but argument 3 has type 'u64'
make[4]: *** [/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs/glock.o] Error 1
make[3]: *** [_module_/builddir/build/BUILD/gfs-kmod-0.1.16/_kmod_build_/src/gfs] Error 2

Regards,

-- 
--    Jos Vos <jos at xos.nl>
--    X/OS Experts in Open Systems BV   |   Phone: +31 20 6938364
--    Amsterdam, The Netherlands        |     Fax: +31 20 6948204