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ircd::db: Additional parallel seek log metric; assertion tool.

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This commit is contained in:
Jason Volk 2020-06-11 08:35:57 -07:00
parent c2562d7dfa
commit 5593ae3a60
1 changed files with 20 additions and 2 deletions
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22
ircd/db.cc
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@ -8010,6 +8010,8 @@ ircd::db::_read(column &column,
if(likely(closure))
closure(value);
// triggered when the result was not zero-copy
//assert(buf.empty());
return size(value);
}
@ -8043,6 +8045,8 @@ ircd::db::_read(std::nothrow_t,
if(likely(closure))
closure(value);
// triggered when the result was not zero-copy
//assert(buf.empty());
return size(value);
}
@ -8104,9 +8108,17 @@ ircd::db::_read(const vector_view<_read_op> &op,
op.size()
};
rocksdb::Status status[num];
std::string buf[num];
rocksdb::PinnableSlice val[num];
for(size_t i(0); i < num; ++i)
new (val + i) rocksdb::PinnableSlice
{
buf + i
};
rocksdb::Status status[num];
_seek(op, {status, num}, {val, num}, ropts);
if(closure) for(size_t i(0); i < op.size(); ++i)
{
const column::delta &delta
@ -8118,6 +8130,9 @@ ircd::db::_read(const vector_view<_read_op> &op,
return false;
}
// triggered when the result was not zero-copy
//assert(!std::count_if(buf, buf + num, [](auto &&s) { return !s.empty(); }));
return true;
}
@ -8165,11 +8180,14 @@ ircd::db::_seek(const vector_view<_read_op> &op,
#ifdef RB_DEBUG_DB_SEEK
log::debug
{
log, "[%s] %lu:%lu SEEK parallel:%zu in %ld$us",
log, "[%s] %lu:%lu SEEK parallel:%zu ok:%zu nf:%zu inc:%zu in %ld$us",
name(d),
sequence(d),
sequence(ropts.snapshot),
ret.size(),
std::count_if(begin(ret), end(ret), [](auto&& s) { return s.ok(); }),
std::count_if(begin(ret), end(ret), [](auto&& s) { return s.IsNotFound(); }),
std::count_if(begin(ret), end(ret), [](auto&& s) { return s.IsIncomplete(); }),
timer.at<microseconds>().count(),
};
#endif