Squid Web Cache v8/master
Loading...
Searching...
No Matches
Public Types | Public Member Functions | Static Public Member Functions | Public Attributes | Static Public Attributes | List of all members
SBufStats Class Reference

#include <Stats.h>

Public Types

using SizeRecorder = void(*)(size_t)
 function for collecting detailed size-related statistics
 

Public Member Functions

std::ostream & dump (std::ostream &os) const
 Dump statistics to an ostream.
 
SBufStats & operator+= (const SBufStats &)
 

Static Public Member Functions

static void RecordSBufSizeAtDestruct (size_t)
 Record the size a SBuf had when it was destructed.
 
static void RecordMemBlobSizeAtDestruct (size_t)
 Record the size a MemBlob had when it was destructed.
 

Public Attributes

uint64_t alloc = 0
 number of calls to SBuf constructors
 
uint64_t allocCopy = 0
 number of calls to SBuf copy-constructor
 
uint64_t allocFromCString = 0
 number of copy-allocations from c-strings
 
uint64_t assignFast = 0
 number of no-copy assignment operations
 
uint64_t clear = 0
 number of clear operations
 
uint64_t append = 0
 number of append operations
 
uint64_t moves = 0
 number of move constructions/assignments
 
uint64_t toStream = 0
 number of write operations to ostreams
 
uint64_t setChar = 0
 number of calls to setAt
 
uint64_t getChar = 0
 number of calls to at() and operator[]
 
uint64_t compareSlow = 0
 number of comparison operations requiring data scan
 
uint64_t compareFast = 0
 number of comparison operations not requiring data scan
 
uint64_t copyOut = 0
 number of data-copies to other forms of buffers
 
uint64_t rawAccess = 0
 number of accesses to raw contents
 
uint64_t nulTerminate = 0
 number of c_str() terminations
 
uint64_t chop = 0
 number of chop operations
 
uint64_t trim = 0
 number of trim operations
 
uint64_t find = 0
 number of find operations
 
uint64_t caseChange = 0
 number of toUpper and toLower operations
 
uint64_t cowAvoided = 0
 number of cow() calls requiring no expensive operations
 
uint64_t cowShift = 0
 number of cow() calls requiring just a memmove(3) inside an old buffer
 
uint64_t cowJustAlloc = 0
 number of cow() calls requiring just a new empty buffer
 
uint64_t cowAllocCopy = 0
 number of cow() calls requiring copying into a new buffer
 
uint64_t live = 0
 number of currently-allocated SBuf
 

Static Public Attributes

static SizeRecorder SBufSizeAtDestructRecorder = nullptr
 collects statistics about SBuf sizes at SBuf destruction time
 
static SizeRecorder MemBlobSizeAtDestructRecorder = nullptr
 collects statistics about MemBlob capacity at MemBlob destruction time
 

Detailed Description

Container for various SBuf class-wide statistics.

The stats are not completely accurate; they're mostly meant to understand whether Squid is leaking resources and whether SBuf is paying off the expected gains.

Definition at line 21 of file Stats.h.

Member Typedef Documentation

◆ SizeRecorder

using SBufStats::SizeRecorder = void (*)(size_t)

Definition at line 62 of file Stats.h.

Member Function Documentation

◆ dump()

std::ostream & SBufStats::dump ( std::ostream &  os) const

Definition at line 65 of file Stats.cc.

References alloc, allocCopy, allocFromCString, append, assignFast, caseChange, chop, clear, compareFast, compareSlow, copyOut, cowAllocCopy, cowAvoided, cowJustAlloc, cowShift, find, getChar, MemBlob::GetStats(), MemBlobStats::live, live, moves, nulTerminate, rawAccess, setChar, toStream, and trim.

Referenced by SBufStatsAction::dump(), and TestSBuf::testDumpStats().

◆ operator+=()

SBufStats & SBufStats::operator+= ( const SBufStats &  ss)

Definition at line 34 of file Stats.cc.

References alloc, allocCopy, allocFromCString, append, assignFast, caseChange, chop, clear, compareFast, compareSlow, copyOut, cowAllocCopy, cowAvoided, cowJustAlloc, cowShift, find, getChar, live, moves, nulTerminate, rawAccess, setChar, toStream, and trim.

◆ RecordMemBlobSizeAtDestruct()

void SBufStats::RecordMemBlobSizeAtDestruct ( size_t  sz)
static

Definition at line 27 of file Stats.cc.

References MemBlobSizeAtDestructRecorder.

Referenced by MemBlob::~MemBlob().

◆ RecordSBufSizeAtDestruct()

void SBufStats::RecordSBufSizeAtDestruct ( size_t  sz)
static

Definition at line 20 of file Stats.cc.

References SBufSizeAtDestructRecorder.

Referenced by SBuf::~SBuf().

Member Data Documentation

◆ alloc

uint64_t SBufStats::alloc = 0

Definition at line 36 of file Stats.h.

Referenced by SBuf::SBuf(), SBuf::SBuf(), SBuf::SBuf(), SBuf::SBuf(), SBuf::SBuf(), dump(), and operator+=().

◆ allocCopy

uint64_t SBufStats::allocCopy = 0

Definition at line 37 of file Stats.h.

Referenced by SBuf::SBuf(), dump(), and operator+=().

◆ allocFromCString

uint64_t SBufStats::allocFromCString = 0

Definition at line 38 of file Stats.h.

Referenced by SBuf::SBuf(), SBuf::SBuf(), dump(), and operator+=().

◆ append

uint64_t SBufStats::append = 0

Definition at line 41 of file Stats.h.

Referenced by dump(), SBuf::lowAppend(), operator+=(), and SBuf::vappendf().

◆ assignFast

uint64_t SBufStats::assignFast = 0

Definition at line 39 of file Stats.h.

Referenced by SBuf::assign(), dump(), and operator+=().

◆ caseChange

uint64_t SBufStats::caseChange = 0

Definition at line 54 of file Stats.h.

Referenced by dump(), operator+=(), SBuf::toLower(), and SBuf::toUpper().

◆ chop

uint64_t SBufStats::chop = 0

Definition at line 51 of file Stats.h.

Referenced by SBuf::chop(), dump(), and operator+=().

◆ clear

uint64_t SBufStats::clear = 0

Definition at line 40 of file Stats.h.

Referenced by SBuf::clear(), dump(), and operator+=().

◆ compareFast

uint64_t SBufStats::compareFast = 0

Definition at line 47 of file Stats.h.

Referenced by SBuf::compare(), dump(), operator+=(), SBuf::operator==(), and SBuf::startsWith().

◆ compareSlow

uint64_t SBufStats::compareSlow = 0

Definition at line 46 of file Stats.h.

Referenced by SBuf::compare(), SBuf::compare(), dump(), operator+=(), and SBuf::operator==().

◆ copyOut

uint64_t SBufStats::copyOut = 0

Definition at line 48 of file Stats.h.

Referenced by SBuf::copy(), dump(), and operator+=().

◆ cowAllocCopy

uint64_t SBufStats::cowAllocCopy = 0

Definition at line 58 of file Stats.h.

Referenced by dump(), operator+=(), and SBuf::reAlloc().

◆ cowAvoided

uint64_t SBufStats::cowAvoided = 0

Definition at line 55 of file Stats.h.

Referenced by SBuf::cow(), dump(), and operator+=().

◆ cowJustAlloc

uint64_t SBufStats::cowJustAlloc = 0

Definition at line 57 of file Stats.h.

Referenced by dump(), operator+=(), and SBuf::reAlloc().

◆ cowShift

uint64_t SBufStats::cowShift = 0

Definition at line 56 of file Stats.h.

Referenced by SBuf::cow(), dump(), and operator+=().

◆ find

uint64_t SBufStats::find = 0

Definition at line 53 of file Stats.h.

Referenced by dump(), SBuf::find(), SBuf::find(), SBuf::findFirstNotOf(), SBuf::findFirstOf(), SBuf::findLastNotOf(), SBuf::findLastOf(), operator+=(), SBuf::rfind(), and SBuf::rfind().

◆ getChar

uint64_t SBufStats::getChar = 0

Definition at line 45 of file Stats.h.

Referenced by dump(), operator+=(), and SBuf::operator[]().

◆ live

uint64_t SBufStats::live = 0

Definition at line 59 of file Stats.h.

Referenced by SBuf::SBuf(), SBuf::SBuf(), SBuf::SBuf(), SBuf::SBuf(), SBuf::SBuf(), SBuf::~SBuf(), dump(), and operator+=().

◆ MemBlobSizeAtDestructRecorder

SBufStats::SizeRecorder SBufStats::MemBlobSizeAtDestructRecorder = nullptr
static

Definition at line 66 of file Stats.h.

Referenced by RecordMemBlobSizeAtDestruct(), and SBufStatsAction::RegisterWithCacheManager().

◆ moves

uint64_t SBufStats::moves = 0

Definition at line 42 of file Stats.h.

Referenced by SBuf::SBuf(), dump(), operator+=(), and SBuf::operator=().

◆ nulTerminate

uint64_t SBufStats::nulTerminate = 0

Definition at line 50 of file Stats.h.

Referenced by SBuf::c_str(), dump(), and operator+=().

◆ rawAccess

uint64_t SBufStats::rawAccess = 0

Definition at line 49 of file Stats.h.

Referenced by SBuf::c_str(), dump(), operator+=(), SBuf::rawContent(), and SBuf::rawSpace().

◆ SBufSizeAtDestructRecorder

SBufStats::SizeRecorder SBufStats::SBufSizeAtDestructRecorder = nullptr
static

Definition at line 64 of file Stats.h.

Referenced by RecordSBufSizeAtDestruct(), and SBufStatsAction::RegisterWithCacheManager().

◆ setChar

uint64_t SBufStats::setChar = 0

Definition at line 44 of file Stats.h.

Referenced by SBuf::c_str(), dump(), operator+=(), and SBuf::setAt().

◆ toStream

uint64_t SBufStats::toStream = 0

Definition at line 43 of file Stats.h.

Referenced by dump(), operator+=(), and SBuf::print().

◆ trim

uint64_t SBufStats::trim = 0

Definition at line 52 of file Stats.h.

Referenced by dump(), operator+=(), and SBuf::trim().

The documentation for this class was generated from the following files: