Stats.h
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1/*
2 * Copyright (C) 1996-2022 The Squid Software Foundation and contributors
3 *
4 * Squid software is distributed under GPLv2+ license and includes
5 * contributions from numerous individuals and organizations.
6 * Please see the COPYING and CONTRIBUTORS files for details.
7 */
8
9#ifndef SQUID_SBUF_STATS_H
10#define SQUID_SBUF_STATS_H
11
12#include <iosfwd>
13
22{
23public:
25 std::ostream& dump(std::ostream &os) const;
26
28
30 static void RecordSBufSizeAtDestruct(size_t);
31
33 static void RecordMemBlobSizeAtDestruct(size_t);
34
35public:
36 uint64_t alloc = 0;
37 uint64_t allocCopy = 0;
38 uint64_t allocFromCString = 0;
39 uint64_t assignFast = 0;
40 uint64_t clear = 0;
41 uint64_t append = 0;
42 uint64_t moves = 0;
43 uint64_t toStream = 0;
44 uint64_t setChar = 0;
45 uint64_t getChar = 0;
46 uint64_t compareSlow = 0;
47 uint64_t compareFast = 0;
48 uint64_t copyOut = 0;
49 uint64_t rawAccess = 0;
50 uint64_t nulTerminate = 0;
51 uint64_t chop = 0;
52 uint64_t trim = 0;
53 uint64_t find = 0;
54 uint64_t caseChange = 0;
55 uint64_t cowAvoided = 0;
56 uint64_t cowShift = 0;
57 uint64_t cowJustAlloc = 0;
58 uint64_t cowAllocCopy = 0;
59 uint64_t live = 0;
60
62 using SizeRecorder = void (*)(size_t);
67};
68
69#endif /* SQUID_SBUF_STATS_H */
70
uint64_t trim
number of trim operations
Definition: Stats.h:52
uint64_t append
number of append operations
Definition: Stats.h:41
std::ostream & dump(std::ostream &os) const
Dump statistics to an ostream.
Definition: Stats.cc:65
uint64_t cowShift
number of cow() calls requiring just a memmove(3) inside an old buffer
Definition: Stats.h:56
uint64_t nulTerminate
number of c_str() terminations
Definition: Stats.h:50
SBufStats & operator+=(const SBufStats &)
Definition: Stats.cc:34
uint64_t moves
number of move constructions/assignments
Definition: Stats.h:42
uint64_t cowJustAlloc
number of cow() calls requiring just a new empty buffer
Definition: Stats.h:57
uint64_t rawAccess
number of accesses to raw contents
Definition: Stats.h:49
uint64_t assignFast
number of no-copy assignment operations
Definition: Stats.h:39
static void RecordMemBlobSizeAtDestruct(size_t)
Record the size a MemBlob had when it was destructed.
Definition: Stats.cc:27
uint64_t cowAllocCopy
number of cow() calls requiring copying into a new buffer
Definition: Stats.h:58
uint64_t getChar
number of calls to at() and operator[]
Definition: Stats.h:45
uint64_t setChar
number of calls to setAt
Definition: Stats.h:44
uint64_t caseChange
number of toUpper and toLower operations
Definition: Stats.h:54
uint64_t cowAvoided
number of cow() calls requiring no expensive operations
Definition: Stats.h:55
static SizeRecorder SBufSizeAtDestructRecorder
collects statistics about SBuf sizes at SBuf destruction time
Definition: Stats.h:64
uint64_t compareFast
number of comparison operations not requiring data scan
Definition: Stats.h:47
uint64_t chop
number of chop operations
Definition: Stats.h:51
uint64_t clear
number of clear operations
Definition: Stats.h:40
static void RecordSBufSizeAtDestruct(size_t)
Record the size a SBuf had when it was destructed.
Definition: Stats.cc:20
static SizeRecorder MemBlobSizeAtDestructRecorder
collects statistics about MemBlob capacity at MemBlob destruction time
Definition: Stats.h:66
uint64_t toStream
number of write operations to ostreams
Definition: Stats.h:43
uint64_t compareSlow
number of comparison operations requiring data scan
Definition: Stats.h:46
uint64_t allocCopy
number of calls to SBuf copy-constructor
Definition: Stats.h:37
uint64_t alloc
number of calls to SBuf constructors
Definition: Stats.h:36
uint64_t find
number of find operations
Definition: Stats.h:53
uint64_t live
number of currently-allocated SBuf
Definition: Stats.h:59
uint64_t copyOut
number of data-copies to other forms of buffers
Definition: Stats.h:48
uint64_t allocFromCString
number of copy-allocations from c-strings
Definition: Stats.h:38
void(*)(size_t) SizeRecorder
function for collecting detailed size-related statistics
Definition: Stats.h:62
int const char size_t
Definition: stub_liblog.cc:86

 

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