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modules/console: Finesse compressed cache statistics back into db cache output.

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This commit is contained in:
Jason Volk 2019-01-16 13:00:40 -08:00
parent 5ae495031f
commit becbcec430
1 changed files with 30 additions and 53 deletions
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83
modules/console.cc
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@ -2215,7 +2215,7 @@ try
const auto inserts_bytes(db::ticker(cache(database), db::ticker_id("rocksdb.block.cache.data.bytes.insert")));
out << std::left
<< std::setw(16) << "ROW"
<< std::setw(32) << "ROW"
<< std::right
<< " "
<< std::setw(7) << "PCT"
@ -2237,7 +2237,7 @@ try
<< std::endl;
out << std::left
<< std::setw(16) << "*"
<< std::setw(32) << "*"
<< std::right
<< " "
<< std::setw(6) << std::right << std::fixed << std::setprecision(2) << (usage_pct * 100)
@ -2266,7 +2266,7 @@ try
}
out << std::left
<< std::setw(16) << "COLUMN"
<< std::setw(32) << "COLUMN"
<< std::right
<< " "
<< std::setw(7) << "PCT"
@ -2287,36 +2287,15 @@ try
<< " "
<< std::endl;
//TODO: compressed cache reenable
/*
<< "|"
<< std::setw(9) << "HITS"
<< " "
<< std::setw(9) << "INSERTS"
<< " "
<< std::setw(26) << "COMPRESSED CACHED"
<< " "
<< std::setw(26) << "COMPRESSED CAPACITY"
<< " "
<< std::setw(7) << "PCT"
<< " "
<< std::endl;
*/
const auto output{[&out]
(const string_view &column_name, const stats &s, const stats &comp)
(const string_view &column_name, const stats &s)
{
const auto pct
{
s.capacity > 0.0? (double(s.usage) / double(s.capacity)) : 0.0L
};
const auto pct_comp
{
comp.capacity > 0.0? (double(comp.usage) / double(comp.capacity)) : 0.0L
};
out << std::setw(16) << std::left << column_name
out << std::setw(32) << std::left << column_name
<< std::right
<< " "
<< std::setw(6) << std::right << std::fixed << std::setprecision(2) << (pct * 100)
@ -2335,31 +2314,29 @@ try
<< std::setw(26) << pretty(iec(s.inserts_bytes))
<< " "
<< std::setw(20) << std::right << pretty(iec(s.pinned))
<< " ";
//TODO: compressed cache reenable
if(1)
{
out << std::endl;
return;
}
out << "|"
<< std::setw(9) << comp.hits
<< " "
<< std::setw(9) << comp.inserts
<< " "
<< std::setw(26) << std::right << pretty(iec(comp.usage))
<< " "
<< std::setw(26) << std::right << pretty(iec(comp.capacity))
<< " "
<< std::setw(6) << std::right << std::fixed << std::setprecision(2) << (pct_comp * 100)
<< '%'
<< " "
<< std::endl;
}};
const auto query{[&database]
const auto totals{[&output]
(const string_view &colname, const stats &uncompressed, const stats &compressed)
{
if(uncompressed.capacity)
output(colname, uncompressed);
if(compressed.capacity)
{
thread_local char buf[64];
const fmt::sprintf rename
{
buf, "%s (compressed)", colname
};
output(rename, compressed);
}
}};
const auto query{[&database, &totals]
(const string_view &colname, const auto &output)
{
const db::column column
@ -2367,7 +2344,7 @@ try
database, colname
};
const stats s
const stats uncompressed
{
db::usage(cache(column)),
db::pinned(cache(column)),
@ -2378,7 +2355,7 @@ try
db::ticker(cache(column), db::ticker_id("rocksdb.block.cache.data.bytes.insert")),
};
const stats comp
const stats compressed
{
db::usage(cache_compressed(column)),
0,
@ -2389,7 +2366,7 @@ try
0
};
output(colname, s, comp);
output(colname, uncompressed, compressed);
}};
// Querying the totals for all caches for all columns in a loop
@ -2403,20 +2380,20 @@ try
comp_total += comp;
});
output("*", s_total, comp_total);
totals("*", s_total, comp_total);
return true;
}
// Query the cache for a single column
if(colname != "**")
{
query(colname, output);
query(colname, totals);
return true;
}
// Querying the cache for all columns in a loop
for(const auto &column : database.columns)
query(name(*column), output);
query(name(*column), totals);
return true;
}