christoph/fail
1
Fork 0
Code Releases Activity

TimerListener: microsecond granularity (ms is too coarse)

Browse Source 
git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1952 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
This commit is contained in:
hsc
2012-11-23 15:35:08 +00:00
parent b9fcba33ac
commit 5135c79c05
6 changed files with 19 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/experiments/ecos_kernel_test/experiment.cc
View File

@ -34,6 +34,8 @@
#define MULTIPLE_SNAPSHOTS 0
#define MULTIPLE_SNAPSHOTS_DISTANCE 1000000
#define TIMER_GRANULARITY 10 // microseconds
using namespace std;
using namespace fail;
@ -183,7 +185,7 @@ bool EcosKernelTestExperiment::performTrace(guest_address_t addr_entry, guest_ad
unsigned instr_counter = 0;
// on the way, count elapsed time
TimerListener time_step(10); //TODO: granularity?
TimerListener time_step(TIMER_GRANULARITY); //TODO: granularity?
//elapsed_time.setCounter(0xFFFFFFFFU); // not working for TimerListener
simulator.addListener(&time_step);
unsigned elapsed_time = 1; // always run 1 step
@ -237,7 +239,7 @@ bool EcosKernelTestExperiment::performTrace(guest_address_t addr_entry, guest_ad
log << dec << "tracing finished after " << instr_counter << " instructions" << endl;
log << hex << "all memory accesses within [ 0x" << lowest_addr << " , 0x" << highest_addr << " ]" << endl;
log << dec << "elapsed time: " << estimated_timeout << " [TimerListener units]" << endl;
log << dec << "elapsed simulated time (plus safety margin): " << (estimated_timeout * TIMER_GRANULARITY / 1000000.0) << "s" << endl;
// save these values for experiment STEP 3
EcosKernelTestCampaign::writeTraceInfo(instr_counter, estimated_timeout, lowest_addr, highest_addr);