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Diffstat (limited to 'src/kern/kernel_stats.cc')
-rw-r--r-- | src/kern/kernel_stats.cc | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/src/kern/kernel_stats.cc b/src/kern/kernel_stats.cc new file mode 100644 index 000000000..29c77b3d9 --- /dev/null +++ b/src/kern/kernel_stats.cc @@ -0,0 +1,142 @@ +/* + * Copyright (c) 2004-2005 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Lisa Hsu + * Nathan Binkert + */ + +#include <string> + +#include "base/trace.hh" +#include "cpu/thread_context.hh" +#include "kern/kernel_stats.hh" +#include "kern/tru64/tru64_syscalls.hh" +#include "sim/system.hh" + +using namespace std; +using namespace Stats; + +namespace Kernel { + +Statistics::Statistics(System *system) + : iplLast(0), iplLastTick(0) +{ +} + +void +Statistics::regStats(const string &_name) +{ + myname = _name; + + _arm + .name(name() + ".inst.arm") + .desc("number of arm instructions executed") + ; + + _quiesce + .name(name() + ".inst.quiesce") + .desc("number of quiesce instructions executed") + ; + + _iplCount + .init(32) + .name(name() + ".ipl_count") + .desc("number of times we switched to this ipl") + .flags(total | pdf | nozero | nonan) + ; + + _iplGood + .init(32) + .name(name() + ".ipl_good") + .desc("number of times we switched to this ipl from a different ipl") + .flags(total | pdf | nozero | nonan) + ; + + _iplTicks + .init(32) + .name(name() + ".ipl_ticks") + .desc("number of cycles we spent at this ipl") + .flags(total | pdf | nozero | nonan) + ; + + _iplUsed + .name(name() + ".ipl_used") + .desc("fraction of swpipl calls that actually changed the ipl") + .flags(total | nozero | nonan) + ; + + _iplUsed = _iplGood / _iplCount; + + _syscall + .init(SystemCalls<Tru64>::Number) + .name(name() + ".syscall") + .desc("number of syscalls executed") + .flags(total | pdf | nozero | nonan) + ; + + //@todo This needs to get the names of syscalls from an appropriate place. +#if 0 + for (int i = 0; i < SystemCalls<Tru64>::Number; ++i) { + const char *str = SystemCalls<Tru64>::name(i); + if (str) { + _syscall.subname(i, str); + } + } +#endif +} + +void +Statistics::swpipl(int ipl) +{ + assert(ipl >= 0 && ipl <= 0x1f && "invalid IPL\n"); + + _iplCount[ipl]++; + + if (ipl == iplLast) + return; + + _iplGood[ipl]++; + _iplTicks[iplLast] += curTick - iplLastTick; + iplLastTick = curTick; + iplLast = ipl; +} + +void +Statistics::serialize(ostream &os) +{ + SERIALIZE_SCALAR(iplLast); + SERIALIZE_SCALAR(iplLastTick); +} + +void +Statistics::unserialize(Checkpoint *cp, const string §ion) +{ + UNSERIALIZE_SCALAR(iplLast); + UNSERIALIZE_SCALAR(iplLastTick); +} + +/* end namespace Kernel */ } |