[ofa-general] getting network statistics

[Eli Cohen]

These files are on a virtual file system and their size does not change.
You need to read them, e.g. using cat, in order to get the statistics
data. For example, "cat port_rcv_data" will give you a measure of how
many bytes of data were received by the port.

On Tue, 2008-05-06 at 16:10 +0200, Pawel Dziekonski wrote:
> you mean port_rcv_data and port_xmit_data ?
> 
> if so, then I have 2 jobs that are definitelly using IB network, but
> those files almost do not change. :o
> 
> OFED 1.2.5.5 and kernel 2.6.9-55.0.12.ELsmp
> 
> root at wn111:/sys/class/infiniband/mthca0/ports/1/counters # ls -al
> total 0
> drwxr-xr-x  2 root root    0 May  6 15:45 ./
> drwxr-xr-x  5 root root    0 May  6 15:45 ../
> -r--r--r--  1 root root 4096 May  6 15:45 VL15_dropped
> -r--r--r--  1 root root 4096 May  6 15:45 excessive_buffer_overrun_errors
> -r--r--r--  1 root root 4096 May  6 15:45 link_downed
> -r--r--r--  1 root root 4096 May  6 15:45 link_error_recovery
> -r--r--r--  1 root root 4096 May  6 15:45 local_link_integrity_errors
> -r--r--r--  1 root root 4096 May  6 15:45 port_rcv_constraint_errors
> -r--r--r--  1 root root 4096 May  6 15:45 port_rcv_data
> -r--r--r--  1 root root 4096 May  6 15:45 port_rcv_errors
> -r--r--r--  1 root root 4096 May  6 15:45 port_rcv_packets
> -r--r--r--  1 root root 4096 May  6 15:45 port_rcv_remote_physical_errors
> -r--r--r--  1 root root 4096 May  6 15:45 port_rcv_switch_relay_errors
> -r--r--r--  1 root root 4096 May  6 15:45 port_xmit_constraint_errors
> -r--r--r--  1 root root 4096 May  6 15:45 port_xmit_data
> -r--r--r--  1 root root 4096 May  6 15:45 port_xmit_discards
> -r--r--r--  1 root root 4096 May  6 15:45 port_xmit_packets
> -r--r--r--  1 root root 4096 May  6 15:45 symbol_error
> 
> 
> On Tue, 19 Feb 2008 at 02:29:56PM +0200, Eli Cohen wrote:
> > cat /sys/class/infiniband/mlx4_0/ports/1/counters/*
> > 
> > mlx4_* can be mthca* 
> > 
> > On Tue, 2008-02-19 at 11:03 +0200, David Minor wrote:
> > > Under Linux with Mellanox ofed, how can I get real-time network
> > > statistics. e.g. how many bytes are being sent and received over each
> > > port at any given time?
>