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modules/console: Add per-cache stats in output to help with churn.

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This commit is contained in:
Jason Volk 2018-09-05 03:10:31 -07:00
parent 923e4dbf5f
commit f245fc74c0
1 changed files with 57 additions and 17 deletions
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74
modules/console.cc
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@ -1385,7 +1385,7 @@ try
<< " "
<< std::setw(9) << "CAPACITY"
<< " "
<< std::setw(6) << " PCT"
<< std::setw(6) << "PCT"
<< " "
<< std::endl;
@ -1411,41 +1411,68 @@ try
<< std::setw(16) << "COLUMN"
<< std::right
<< " "
<< std::setw(9) << "CACHED"
<< std::setw(9) << "HITS"
<< " "
<< std::setw(9) << "CAPACITY"
<< std::setw(9) << "MISSES"
<< " "
<< std::setw(6) << " PCT"
<< std::setw(9) << "INSERTS"
<< " "
<< std::setw(9) << " COMPRESS"
<< std::setw(10) << "CACHED"
<< " "
<< std::setw(9) << "CAPACITY"
<< std::setw(10) << "CAPACITY"
<< " "
<< std::setw(6) << " PCT"
<< std::setw(7) << "PCT"
<< " "
<< "|"
<< std::setw(9) << "HITS"
<< " "
<< std::setw(9) << "MISSES"
<< " "
<< std::setw(9) << "INSERTS"
<< " "
<< std::setw(10) << "CACHED"
<< " "
<< std::setw(10) << "CAPACITY"
<< " "
<< std::setw(7) << "PCT"
<< std::endl;
const auto output{[&out]
(const string_view &column_name,
const size_t &usage, const size_t &capacity,
const size_t usage_comp, const size_t &capacity_comp,
const double &usage_pct, const double &usage_comp_pct)
const double &usage_pct, const double &usage_comp_pct,
const db::cache_stats &stats, const db::cache_stats &stats_comp)
{
out << std::setw(16) << std::left << column_name
<< " "
<< std::right
<< std::setw(9) << usage
<< " "
<< std::setw(9) << capacity
<< std::setw(9) << stats.hits
<< " "
<< std::setw(9) << stats.misses
<< " "
<< std::setw(9) << stats.inserts
<< " "
<< std::setw(10) << usage
<< " "
<< std::setw(10) << capacity
<< " "
<< std::setw(6) << std::right << std::fixed << std::setprecision(2) << (usage_pct * 100)
<< "% "
<< std::setw(9) << usage_comp
<< '%'
<< " "
<< std::setw(9) << capacity_comp
<< "|"
<< std::setw(9) << stats_comp.hits
<< " "
<< std::setw(9) << stats_comp.misses
<< " "
<< std::setw(9) << stats_comp.inserts
<< " "
<< std::setw(10) << usage_comp
<< " "
<< std::setw(10) << capacity_comp
<< " "
<< std::setw(6) << std::right << std::fixed << std::setprecision(2) << (usage_comp_pct * 100)
<< "%"
<< '%'
<< std::endl;
}};
@ -1471,7 +1498,9 @@ try
capacity_comp > 0.0? (double(usage_comp) / double(capacity_comp)) : 0.0L
};
output(colname, usage, capacity, usage_comp, capacity_comp, usage_pct, usage_comp_pct);
const auto stats(db::stats(cache(column)));
const auto stats_comp(db::stats(cache_compressed(column)));
output(colname, usage, capacity, usage_comp, capacity_comp, usage_pct, usage_comp_pct, stats, stats_comp);
}};
// Querying the totals for all caches for all columns in a loop
@ -1479,6 +1508,7 @@ try
{
size_t usage(0), usage_comp(0);
size_t capacity(0), capacity_comp(0);
db::cache_stats stats, stats_comp;
for(const auto &column : database.columns)
{
const db::column c(*column);
@ -1486,6 +1516,16 @@ try
capacity += db::capacity(cache(c));
usage_comp += db::usage(cache_compressed(c));
capacity_comp += db::capacity(cache_compressed(c));
const auto _stats(db::stats(cache(c)));
stats.inserts += _stats.inserts;
stats.misses += _stats.misses;
stats.hits += _stats.hits;
const auto _stats_comp(db::stats(cache_compressed(c)));
stats_comp.inserts += _stats_comp.inserts;
stats_comp.misses += _stats_comp.misses;
stats_comp.hits += _stats_comp.hits;
}
const auto usage_pct
@ -1498,7 +1538,7 @@ try
capacity_comp > 0.0? (double(usage_comp) / double(capacity_comp)) : 0.0L
};
output("*", usage, capacity, usage_comp, capacity_comp, usage_pct, usage_comp_pct);
output("*", usage, capacity, usage_comp, capacity_comp, usage_pct, usage_comp_pct, stats, stats_comp);
return true;
}