[Devel] [PATCH v2 00/14] Statistics for vstorage kernel fast-path

[Alexey Kuznetsov]

Hello!

Ack to the whole series.

On Fri, May 24, 2019 at 6:55 PM Pavel Butsykin <pbutsykin at virtuozzo.com> wrote:
>
> Vstorage provides plenty of statistics information via 'vstorage -c cl mnt-top',
> but when it comes kernel fast-path, it doesn't work. All because mnt-top
> command collects information from .vstorage.info directory, where vstorage-mount
> provides a lot of different statistical information in the form of files, but
> it was not implemented for for fast-path.
>
> This patch-set is aimed to implementation of the support of some statistics
> inforamtion files from .vstorage.info:
>   cs_stats
>   fstat
>   fstat_lat
>   iostat
>   requests
> Which will be located at "/sys/fs/fuse/connections/*mnt_id*/kio_stat/". This
> will be enough to maintain vstorage mnt-top command for fast-path mount points.
>
> Pavel Butsykin (14):
>   fs/fuse: add conn_ctl to fuse_conn struct
>   fs/fuse kio: create sysfs stat directory
>   fs/fuse kio: implement iostat statistics info
>   fs/fuse kio: make interface pcs_kio_file_list() for listing kio files
>   fs/fuse kio: make interface pcs_kio_req_list() for listing kio reqs
>   fs/fuse kio: add retry counter for kio requests
>   fs/fuse kio: implement pcs_strerror()
>   fs/fuse kio: implement requests statistics info
>   fs/fuse kio: implement fstat statistics info
>   fs/fuse kio: implement fstat_lat statistics info
>   fs/fuse kio: remove useless pcs_cs initialization
>   fs/fuse kio: implement cs statistics accounting
>   fs/fuse kio: convert rpc state id to string
>   fs/fuse kio: implement cs_stats statistics info
>
>  fs/fuse/Makefile                        |   3 +-
>  fs/fuse/control.c                       |   5 +-
>  fs/fuse/fuse_i.h                        |   1 +
>  fs/fuse/inode.c                         |   1 +
>  fs/fuse/kio/pcs/fuse_stat.c             | 878 ++++++++++++++++++++++++++++++++
>  fs/fuse/kio/pcs/fuse_stat.h             |  91 ++++
>  fs/fuse/kio/pcs/pcs_client_types.h      |   3 +
>  fs/fuse/kio/pcs/pcs_cluster.c           |   1 +
>  fs/fuse/kio/pcs/pcs_cluster.h           |  12 +-
>  fs/fuse/kio/pcs/pcs_cluster_core.c      |   3 +
>  fs/fuse/kio/pcs/pcs_cs.c                |  96 +++-
>  fs/fuse/kio/pcs/pcs_cs.h                |  49 +-
>  fs/fuse/kio/pcs/pcs_error.h             |  83 ++-
>  fs/fuse/kio/pcs/pcs_fuse_kdirect.c      |  59 ++-
>  fs/fuse/kio/pcs/pcs_map.c               |   2 +
>  fs/fuse/kio/pcs/pcs_perfcounters.h      |  17 +-
>  fs/fuse/kio/pcs/pcs_perfcounters_stub.h |  30 --
>  fs/fuse/kio/pcs/pcs_req.c               |   1 +
>  fs/fuse/kio/pcs/pcs_req.h               |  10 +
>  fs/fuse/kio/pcs/pcs_rpc.c               |  23 +
>  fs/fuse/kio/pcs/pcs_rpc.h               |   2 +
>  21 files changed, 1290 insertions(+), 80 deletions(-)
>  create mode 100644 fs/fuse/kio/pcs/fuse_stat.c
>  create mode 100644 fs/fuse/kio/pcs/fuse_stat.h
>  delete mode 100644 fs/fuse/kio/pcs/pcs_perfcounters_stub.h
>
> --
> 2.15.1
>