On 22-6-2006 15:03, David Roussel wrote:
Sureky the 'perfect' line ought to be linear? If the performance was
perfectly linear, then the 'pages generated' ought to be G times the
number (virtual) processors, where G is the gradient of the graph. In
such a case the graph will go through the origin (o,o), but you graph
does not show this.
I'm a bit confused, what is the 'perfect' supposed to be?
First of all, this graph has no origin. Its a bit difficult to test with
less than one cpu.
Anyway, the line actually is linear and would've gone through the
origin, if there was one. What I did was take the level of the
'max'-line at 1 and then multiply it by 2, 4, 6 and 8. So if at 1 the
level would've been 22000, the 2 would be 44000 and the 8 176000.
Please do notice the distance between 1 and 2 on the x-axis is the same
as between 2 and 4, which makes the graph a bit harder to read.
Best regards,
Arjen
---------------------------(end of broadcast)---------------------------
TIP 3: Have you checked our extensive FAQ?
http://www.postgresql.org/docs/faq
