)
From: Peter Tillotson
To: "user@cassandra.apache.org" ; Kent Tong
Sent: Friday, December 16, 2011 1:45 AM
Subject: Re: performance reaching plateau while the hardware is still idle
May I suggest dstat, does cpu, memory, and io on one console
dstat -vn 3
S
;user@cassandra.apache.org"
Cc:
Sent: Thursday, 15 December 2011, 10:58
Subject: performance reaching plateau while the hardware is still idle
Hi,
I am running a performance test for Cassandra 1.0.5. It can perform about 1500
business operation (one read+one write to the same row) per secon
Use parallel test:-)))
2011/12/15 Kent Tong
> Hi,
>
> I am running a performance test for Cassandra 1.0.5. It can perform about
> 1500 business operation (one read+one write to the same row) per second.
> However, the CPU is still 85% idle (as shown by vmstat) and the IO
> utilization is less th
Hi,
I am running a performance test for Cassandra 1.0.5. It can perform about 1500
business operation (one read+one write to the same row) per second. However,
the CPU is still 85% idle (as shown by vmstat) and the IO utilization is less
than a few percent (as shown by iostat). "nodetool tpstat
