HP Caliper User's Guide

% of Cycles lost due to all stalls
(lower is better)
Percentage of cycles lost due to all stalls.
% of Cycles lost due to Front end
stalls (ICACHE, ITLB, and branch
execution)
Pecentage of cycles lost due to ICACHE, ITLB
and branch execution stalls.
% of Cycles lost due to instruction
TLB stalls
Percentage of cycles lost due to instruction TLB
miss stalls.
% of Cycles lost due to instruction
cache stalls
Perdcentage of cycles lost due to instruction
cache miss stalls.
% of Cycles lost due to instruction
access stalls (ICACHE and ITLB)
Perdcentage of cycles lost due to instruction
cache miss and instruction TLB miss stalls.
% of Cycles lost due to branch
execution
Percentage of cycles lost due to branch execution
(branch re-steer).
Total L1 instruction TLB references Number of L1 instruction TLB references.
L1 instruction TLB miss percentage Percentage of L1 instuction TLB accesses that
missed.
L2 instruction TLB misses Number of L2 instruction TLB misses.
Percentage of L2 ITLB misses
covered by the HPW
Percentage of L2 ITLB misses that were serviced
by the hardware page walker (HPW).
L1 ITLB miss per 1000 instructions
retired
Number of L1 ITLB misses per 1000 instructions
retired.
L2 ITLB miss per 1000 instructions
retired
Number of L2 ITLB misses per 1000 instructions
retired.
itlb Measurement Report Metrics
See Table B-20 “Information in itlb Measurement Reports”.
In this table, “program object” refers to any of the following:
• Thread
• Load module
• Function
• Statement
• Cache line
Table B-20 Information in itlb Measurement Reports
DescriptionColumn
Percent of the total for <metric> attributable to a given program object. The <metric>
is the same as the <metric> HP Caliper uses for sorting, except when the sort metric is
address, in which case sampled misses is used.
% Total
<metric>
Running sum of the percent of total for <metric> accounted for by the given program
object and those listed above it.
Cumulat % of
Total
284 Descriptions of Measurement Reports