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authorNathan Binkert <nate@binkert.org>2009-03-05 19:09:53 -0800
committerNathan Binkert <nate@binkert.org>2009-03-05 19:09:53 -0800
commit6f787e3d368eb248aee0854d99ed55e332d80170 (patch)
tree22a153b41f7cd998ef3fcccb8a766eed7d1e92ab /src/base
parent9f45fbaaa6e5f0fc63c63162b756c44b33e367f5 (diff)
downloadgem5-6f787e3d368eb248aee0854d99ed55e332d80170.tar.xz
stats: create an enable phase, and a prepare phase.
Enable more or less takes the place of check, but also allows stats to do some other configuration. Prepare moves all of the code that readies a stat for dumping into a separate function in preparation for supporting serialization of certain pieces of statistics data. While we're at it, clean up the visitor code and some of the python code.
Diffstat (limited to 'src/base')
-rw-r--r--src/base/statistics.cc65
-rw-r--r--src/base/statistics.hh264
-rw-r--r--src/base/stats/output.cc3
3 files changed, 181 insertions, 151 deletions
diff --git a/src/base/statistics.cc b/src/base/statistics.cc
index c77816f23..0a59248e7 100644
--- a/src/base/statistics.cc
+++ b/src/base/statistics.cc
@@ -32,6 +32,7 @@
#include <fstream>
#include <list>
#include <map>
+#include <set>
#include <string>
#include "base/callback.hh"
@@ -174,6 +175,41 @@ Info::baseCheck() const
return true;
}
+void
+Info::enable()
+{
+}
+
+void
+VectorInfoBase::enable()
+{
+ size_type s = size();
+ if (subnames.size() < s)
+ subnames.resize(s);
+ if (subdescs.size() < s)
+ subdescs.resize(s);
+}
+
+void
+VectorDistInfoBase::enable()
+{
+ size_type s = size();
+ if (subnames.size() < s)
+ subnames.resize(s);
+ if (subdescs.size() < s)
+ subdescs.resize(s);
+}
+
+void
+Vector2dInfoBase::enable()
+{
+ if (subnames.size() < x)
+ subnames.resize(x);
+ if (subdescs.size() < x)
+ subdescs.resize(x);
+ if (y_subnames.size() < y)
+ y_subnames.resize(y);
+}
Formula::Formula()
{
@@ -244,11 +280,6 @@ Formula::zero() const
return true;
}
-void
-Formula::update()
-{
-}
-
string
Formula::str() const
{
@@ -256,7 +287,7 @@ Formula::str() const
}
void
-check()
+enable()
{
typedef list<Info *>::iterator iter_t;
@@ -277,17 +308,21 @@ check()
statsList().sort(Info::less);
- if (i == end)
- return;
-
- iter_t last = i;
- ++i;
-
for (i = statsList().begin(); i != end; ++i) {
- if ((*i)->name == (*last)->name)
- panic("same name used twice! name=%s\n", (*i)->name);
+ Info *info = *i;
+ info->enable();
+ }
+}
- last = i;
+void
+prepare()
+{
+ list<Info *>::iterator i = statsList().begin();
+ list<Info *>::iterator end = statsList().end();
+ while (i != end) {
+ Info *info = *i;
+ info->prepare();
+ ++i;
}
}
diff --git a/src/base/statistics.hh b/src/base/statistics.hh
index ef22ebe24..6240be7a2 100644
--- a/src/base/statistics.hh
+++ b/src/base/statistics.hh
@@ -123,6 +123,16 @@ class Info
bool baseCheck() const;
/**
+ * Enable the stat for use
+ */
+ virtual void enable();
+
+ /**
+ * Prepare the stat for dumping.
+ */
+ virtual void prepare() = 0;
+
+ /**
* Reset the stat to the default state.
*/
virtual void reset() = 0;
@@ -159,7 +169,13 @@ class InfoWrap : public Base
InfoWrap(Stat &stat) : s(stat) {}
bool check() const { return s.check(); }
+ void prepare() { s.prepare(); }
void reset() { s.reset(); }
+ void
+ visit(Visit &visitor)
+ {
+ visitor.visit(*static_cast<Base *>(this));
+ }
bool zero() const { return s.zero(); }
};
@@ -169,7 +185,6 @@ class ScalarInfoBase : public Info
virtual Counter value() const = 0;
virtual Result result() const = 0;
virtual Result total() const = 0;
- void visit(Visit &visitor) { visitor.visit(*this); }
};
template <class Stat>
@@ -191,23 +206,13 @@ class VectorInfoBase : public Info
std::vector<std::string> subdescs;
public:
+ void enable();
+
+ public:
virtual size_type size() const = 0;
virtual const VCounter &value() const = 0;
virtual const VResult &result() const = 0;
virtual Result total() const = 0;
-
- void
- update()
- {
- if (!subnames.empty()) {
- size_type s = size();
- if (subnames.size() < s)
- subnames.resize(s);
-
- if (subdescs.size() < s)
- subdescs.resize(s);
- }
- }
};
template <class Stat>
@@ -237,14 +242,6 @@ class VectorInfo : public InfoWrap<Stat, VectorInfoBase>
}
Result total() const { return this->s.total(); }
-
- void
- visit(Visit &visitor)
- {
- this->update();
- this->s.update();
- visitor.visit(*this);
- }
};
struct DistData
@@ -271,13 +268,6 @@ class DistInfo : public InfoWrap<Stat, DistInfoBase>
{
public:
DistInfo(Stat &stat) : InfoWrap<Stat, DistInfoBase>(stat) {}
-
- void
- visit(Visit &visitor)
- {
- this->s.update();
- visitor.visit(*this);
- }
};
class VectorDistInfoBase : public Info
@@ -288,6 +278,7 @@ class VectorDistInfoBase : public Info
/** Names and descriptions of subfields. */
std::vector<std::string> subnames;
std::vector<std::string> subdescs;
+ void enable();
protected:
/** Local storage for the entry values, used for printing. */
@@ -295,17 +286,6 @@ class VectorDistInfoBase : public Info
public:
virtual size_type size() const = 0;
-
- void
- update()
- {
- size_type s = size();
- if (subnames.size() < s)
- subnames.resize(s);
-
- if (subdescs.size() < s)
- subdescs.resize(s);
- }
};
template <class Stat>
@@ -315,14 +295,6 @@ class VectorDistInfo : public InfoWrap<Stat, VectorDistInfoBase>
VectorDistInfo(Stat &stat) : InfoWrap<Stat, VectorDistInfoBase>(stat) {}
size_type size() const { return this->s.size(); }
-
- void
- visit(Visit &visitor)
- {
- this->update();
- this->s.update();
- visitor.visit(*this);
- }
};
class Vector2dInfoBase : public Info
@@ -339,13 +311,7 @@ class Vector2dInfoBase : public Info
/** Local storage for the entry values, used for printing. */
mutable VCounter cvec;
- public:
- void
- update()
- {
- if (subnames.size() < x)
- subnames.resize(x);
- }
+ void enable();
};
template <class Stat>
@@ -353,14 +319,6 @@ class Vector2dInfo : public InfoWrap<Stat, Vector2dInfoBase>
{
public:
Vector2dInfo(Stat &stat) : InfoWrap<Stat, Vector2dInfoBase>(stat) {}
-
- void
- visit(Visit &visitor)
- {
- this->update();
- this->s.update();
- visitor.visit(*this);
- }
};
class InfoAccess
@@ -382,7 +340,7 @@ class InfoAccess
/**
* Reset the stat to the default state.
*/
- void reset() {}
+ void reset() { }
/**
* @return true if this stat has a value and satisfies its
@@ -525,7 +483,7 @@ class DataWrapVec : public DataWrap<Derived, InfoType>
subname(off_type index, const std::string &name)
{
Derived &self = this->self();
- Info *info = this->info();
+ Info *info = self.info();
std::vector<std::string> &subn = info->subnames;
if (subn.size() <= index)
@@ -559,6 +517,17 @@ class DataWrapVec : public DataWrap<Derived, InfoType>
}
void
+ prepare()
+ {
+ Derived &self = this->self();
+ Info *info = this->info();
+
+ size_t size = self.size();
+ for (off_type i = 0; i < size; ++i)
+ self.data(i)->prepare(info);
+ }
+
+ void
reset()
{
Derived &self = this->self();
@@ -658,6 +627,10 @@ class StatStor
*/
Result result() const { return (Result)data; }
/**
+ * Prepare stat data for dumping or serialization
+ */
+ void prepare(Info *info) { }
+ /**
* Reset stat value to default
*/
void reset(Info *info) { data = Counter(); }
@@ -734,8 +707,7 @@ class AvgStor
Result
result() const
{
- total += current * (curTick - last);
- last = curTick;
+ assert(last == curTick);
return (Result)(total + current) / (Result)(curTick + 1);
}
@@ -745,6 +717,16 @@ class AvgStor
bool zero() const { return total == 0.0; }
/**
+ * Prepare stat data for dumping or serialization
+ */
+ void
+ prepare(Info *info)
+ {
+ total += current * (curTick - last);
+ last = curTick;
+ }
+
+ /**
* Reset stat value to default
*/
void
@@ -863,11 +845,6 @@ class ScalarBase : public DataWrap<Derived, ScalarInfo>
*/
size_type size() const { return 1; }
- /**
- * Reset stat value to default
- */
- void reset() { data()->reset(this->info()); }
-
Counter value() { return data()->value(); }
Result result() { return data()->result(); }
@@ -875,17 +852,22 @@ class ScalarBase : public DataWrap<Derived, ScalarInfo>
Result total() { return result(); }
bool zero() { return result() == 0.0; }
+
+ void reset() { data()->reset(this->info()); }
+ void prepare() { data()->prepare(this->info()); }
};
class ProxyInfo : public ScalarInfoBase
{
public:
- void visit(Visit &visitor) { visitor.visit(*this); }
std::string str() const { return to_string(value()); }
size_type size() const { return 1; }
bool check() const { return true; }
- void reset() {}
+ void prepare() { }
+ void reset() { }
bool zero() const { return value() == 0; }
+
+ void visit(Visit &visitor) { visitor.visit(*this); }
};
template <class T>
@@ -950,6 +932,7 @@ class ValueBase : public DataWrap<Derived, ScalarInfo>
std::string str() const { return proxy->str(); }
bool zero() const { return proxy->zero(); }
bool check() const { return proxy != NULL; }
+ void prepare() { }
void reset() { }
};
@@ -1230,8 +1213,6 @@ class VectorBase : public DataWrapVec<Derived, VectorInfo>
assert (index >= 0 && index < size());
return Proxy(this->self(), index);
}
-
- void update() {}
};
template <class Stat>
@@ -1348,16 +1329,6 @@ class Vector2dBase : public DataWrapVec2d<Derived, Vector2dInfo>
delete [] reinterpret_cast<char *>(storage);
}
- void
- update()
- {
- Info *info = this->info();
- size_type size = this->size();
- info->cvec.resize(size);
- for (off_type i = 0; i < size; ++i)
- info->cvec[i] = data(i)->value();
- }
-
Derived &
init(size_type _x, size_type _y)
{
@@ -1413,6 +1384,20 @@ class Vector2dBase : public DataWrapVec2d<Derived, Vector2dInfo>
#endif
}
+ void
+ prepare()
+ {
+ Info *info = this->info();
+ size_type size = this->size();
+
+ for (off_type i = 0; i < size; ++i)
+ data(i)->prepare(info);
+
+ info->cvec.resize(size);
+ for (off_type i = 0; i < size; ++i)
+ info->cvec[i] = data(i)->value();
+ }
+
/**
* Reset stat value to default
*/
@@ -1541,7 +1526,7 @@ class DistStor
}
void
- update(Info *info, DistData &data)
+ prepare(Info *info, DistData &data)
{
const Params *params = safe_cast<const Params *>(info->storageParams);
@@ -1630,14 +1615,6 @@ class FancyStor
samples += number;
}
- void
- update(Info *info, DistData &data)
- {
- data.sum = sum;
- data.squares = squares;
- data.samples = samples;
- }
-
/**
* Return the number of entries in this stat, 1
* @return 1.
@@ -1650,6 +1627,14 @@ class FancyStor
*/
bool zero() const { return samples == Counter(); }
+ void
+ prepare(Info *info, DistData &data)
+ {
+ data.sum = sum;
+ data.squares = squares;
+ data.samples = samples;
+ }
+
/**
* Reset stat value to default
*/
@@ -1702,14 +1687,6 @@ class AvgFancy
squares += value * value;
}
- void
- update(Info *info, DistData &data)
- {
- data.sum = sum;
- data.squares = squares;
- data.samples = curTick;
- }
-
/**
* Return the number of entries, in this case 1.
* @return 1.
@@ -1722,6 +1699,14 @@ class AvgFancy
*/
bool zero() const { return sum == Counter(); }
+ void
+ prepare(Info *info, DistData &data)
+ {
+ data.sum = sum;
+ data.squares = squares;
+ data.samples = curTick;
+ }
+
/**
* Reset stat value to default
*/
@@ -1801,10 +1786,10 @@ class DistBase : public DataWrap<Derived, DistInfo>
bool zero() const { return data()->zero(); }
void
- update()
+ prepare()
{
Info *info = this->info();
- data()->update(info, info->data);
+ data()->prepare(info, info->data);
}
/**
@@ -1900,23 +1885,20 @@ class VectorDistBase : public DataWrapVec<Derived, VectorDistInfo>
#endif
}
- bool
- check() const
- {
- return storage != NULL;
- }
-
void
- update()
+ prepare()
{
- Derived &self = this->self();
Info *info = this->info();
+ size_type size = this->size();
+ info->data.resize(size);
+ for (off_type i = 0; i < size; ++i)
+ data(i)->prepare(info, info->data[i]);
+ }
- size_type size = self.size();
- info.data.resize(size);
- for (off_type i = 0; i < size; ++i) {
- data(i)->update(info, info.data[i]);
- }
+ bool
+ check() const
+ {
+ return storage != NULL;
}
};
@@ -2589,14 +2571,6 @@ class FormulaInfo : public InfoWrap<Stat, FormulaInfoBase>
Result total() const { return this->s.total(); }
VCounter &value() const { return cvec; }
- void
- visit(Visit &visitor)
- {
- this->update();
- this->s.update();
- visitor.visit(*this);
- }
-
std::string str() const { return this->s.str(); }
};
@@ -2677,11 +2651,6 @@ class Formula : public DataWrapVec<Formula, FormulaInfo>
*/
bool zero() const;
- /**
- *
- */
- void update();
-
std::string str() const;
};
@@ -2876,11 +2845,6 @@ class Temp
* @}
*/
-void check();
-void dump();
-void reset();
-void registerResetCallback(Callback *cb);
-
inline Temp
operator+(Temp l, Temp r)
{
@@ -2931,6 +2895,34 @@ sum(Temp val)
return NodePtr(new SumNode<std::plus<Result> >(val));
}
+/**
+ * Enable the statistics package. Before the statistics package is
+ * enabled, all statistics must be created and initialized and once
+ * the package is enabled, no more statistics can be created.
+ */
+void enable();
+
+/**
+ * Prepare all stats for data access. This must be done before
+ * dumping and serialization.
+ */
+void prepare();
+
+/**
+ * Dump all statistics data to the registered outputs
+ */
+void dump();
+
+/**
+ * Reset all statistics to the base state
+ */
+void reset();
+/**
+ * Register a callback that should be called whenever statistics are
+ * reset
+ */
+void registerResetCallback(Callback *cb);
+
std::list<Info *> &statsList();
/* namespace Stats */ }
diff --git a/src/base/stats/output.cc b/src/base/stats/output.cc
index 9f2b91c77..31aa21c45 100644
--- a/src/base/stats/output.cc
+++ b/src/base/stats/output.cc
@@ -30,6 +30,7 @@
#include <list>
+#include "base/statistics.hh"
#include "base/stats/output.hh"
#include "sim/eventq.hh"
#include "sim/host.hh"
@@ -49,6 +50,8 @@ dump()
return;
lastDump = curTick;
+ prepare();
+
list<Output *>::iterator i = OutputList.begin();
list<Output *>::iterator end = OutputList.end();
for (; i != end; ++i) {