On Wed, 2 Nov 2005, Richard McDougall wrote:
Hi Matty,
We use some scripts to post-process busstat into what you are looking
for: bandwidth per sbus and device. It's a two phase operation now,
collect and report. See below for the report and collect scripts...
Hi Richard,
I reviewed the scripts, and noticed the following headings in
"print_ac_gigaplane_stats":
print "AbUtil DbUtil RTS RTSA RTO WB\n";
[...]
print "RIO WIO RBIO WBIO RS WS\n";
Any idea what the columns stand for? Do you happen to know what the size
of a pkt would be? Do you or anyone on the list happen to know where I can
get descriptions for the busstat column headers?
Thanks for the reply and the awesome scripts,
- Ryan
--
UNIX Administrator
http://daemons.net/~matty
Regards,
Richard.
On Wed, Nov 02, 2005 at 01:48:49PM -0500, Matty wrote:
Howdy,
I have been playing around with busstat, and must say that this is a
really really cool utility! To get an idea of what the event counters
mean, I started reading through a PCI reference and the following website:
http://www.readol.net/books/computer/system/System.Performance.Tuning.Second.Edition/059600284x/spt2-CHP-3-SECT-6.html
This website mentions that the value "dvma_bytes_xfr" could be used to get
the number of bytes transferred on SBUS-based machines. Upon inspecting
the busstat events on a Sun 280R, I didn't notice a similar event:
$ busstat -e pcis0
pic0
dvma_stream_rd
dvma_stream_wr
dvma_const_rd
dvma_const_wr
dvma_stream_buf_mis
dvma_cycles
dvma_wd_xfr
pio_cycles
dvma_tlb_misses
interrupts
saf_inter_nack
pio_reads
pio_writes
dvma_rd_buf_timeout
dvma_rd_rtry_stc
dvma_wr_rtry_stc
dvma_rd_rtry_nonstc
dvma_wr_rtry_nonstc
E*_slow_transitions
E*_slow_cycles_per_64
Are the events documented anywhere by any chance? Is there anything
equivalent to "dvma_bytes_xfr" to get the number of bytes transmitted
on a PCI bus?
Thanks for any insight,
- Ryan
--
UNIX Administrator
http://daemons.net/~matty
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