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RAMpage campaign: reuse already existing results

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git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1653 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
This commit is contained in:
hsc
2012-09-14 16:03:20 +00:00
parent 7c48c3e35c
commit ec601e2891
1 changed files with 32 additions and 3 deletions
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35
src/experiments/rampage/campaign.cc
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@ -1,5 +1,6 @@
#include <iostream>
#include <fstream>
#include <set>
#include "cpn/CampaignManager.hpp"
#include "campaign.hpp"
@ -12,7 +13,31 @@ char const * const results_filename = "rampage.csv";
bool RAMpageCampaign::run()
{
// TODO read already existing results
// read already existing results
bool file_exists = false;
set<uint64_t> existing_results;
ifstream oldresults(results_filename, ios::in);
if (oldresults.is_open()) {
char buf[1024];
uint64_t addr;
int count = 0;
m_log << "scanning existing results ..." << endl;
file_exists = true;
while (oldresults.getline(buf, sizeof(buf)).good()) {
stringstream ss;
ss << buf;
ss >> addr;
if (ss.fail()) {
continue;
}
++count;
if (!existing_results.insert(addr).second) {
m_log << "duplicate: " << addr << endl;
}
}
m_log << "found " << dec << count << " existing results" << endl;
oldresults.close();
}
// non-destructive: due to the CSV header we can always manually recover
// from an accident (append mode)
@ -21,7 +46,10 @@ bool RAMpageCampaign::run()
m_log << "failed to open " << results_filename << endl;
return false;
}
results << "addr\tbit1\tbit2\terrortype\tlocal_timeout\tglobal_timeout\tmem_written\tresulttype\terror_detected_pfn\texperiment_time\tdetails" << endl;
// only write CSV header if file didn't exist before
if (!file_exists) {
results << "addr\tbit1\tbit2\terrortype\tlocal_timeout\tglobal_timeout\tmem_written\tresulttype\terror_detected_pfn\texperiment_time\tdetails" << endl;
}
// count address bits needed for memory size
unsigned address_bits = 0;
@ -34,7 +62,8 @@ bool RAMpageCampaign::run()
// systematically march through the fault space
for (uint64_t n = 0; n < 1024; ++n) {
uint64_t addr = reverse_bits(n) >> (64 - address_bits);
if (addr >= MEM_SIZE) {
if (addr >= MEM_SIZE ||
existing_results.find(addr) != existing_results.end()) {
continue;
}