Introduce the next version of the trace-cmd trace file - 7. Major changes
since version 6:
- New, flexible and extendable structure of the file.
- Optional compression of file metadata and tracing data.
By default, trace-cmd still uses the old version 6 when recording trace
file. There are new arguments to force using the new version.
A new "trace-cmd convert" sub-command is introduced, to convert files
between different versions.
Known issues:
- "trace-cmd split" does not work with trace file version 7, if there are
CPUs with empty trace data.
v2 changes:
- Fixed trace-cmd agent to work with v7 compressed files.
- Fixed converting files from v6 to v7 with empty top buffer.
- Minor coding style fixes.
Tzvetomir Stoyanov (VMware) (87):
trace-cmd library: Read option id with correct endian
trace-cmd report: Fix typos in error messages
tarce-cmd library: Fix version string memory leak
trace-cmd library: Fixed a memory leak on input handler close
trace-cmd library: Fix possible memory corruption on processing a
trace buffer
trace-cmd library: Add constructor and destructor
trace-cmd library: Add cache functionality to network message handler
trace-cmd library: Add support for compression algorithms
trace-cmd list: Show supported compression algorithms
trace-cmd library: Internal helpers for compressing data
trace-cmd library: Internal helpers for uncompressing data
trace-cmd library: Define trace file version 7
trace-cmd library: Refactor APIs for creating output handler
trace-cmd library: Reuse within the library the function that checks
file state.
trace-cmd library: New API to get the version of output handler
trace-cmd library: Inherit compression algorithm from input file
trace-cmd library: New API to configure compression on an output
handler
trace-cmd record: Add compression to the trace context
trace-cmd library: Write compression header in the trace file
trace-cmd library: Compress part of the trace file
trace-cmd library: Add internal helper functon for writing headers
before file sections
trace-cmd library: Write header before file sections
trace-cmd library: Refactor the logic for writing trace data in the
file
trace-cmd library: Add local helper function for data compression
trace-cmd library: Compress the trace data
tarce-cmd library: Add multiple options sections in trace file version
7
trace-cmd library: Do not write CPU count section in trace files
version 7
trace-cmd library: Move CPU flyrecord trace metadata into the buffer
option, for trace file version 7
trace-cmd record: Append trace options after the trace data are
written
trace-cmd library: Add section header before flyrecord trace data
trace-cmd library: Fit CPU latency trace data in the new trace file
version 7 format
trace-cmd library: Do not write CPUs with empty trace data
trace-cmd library: Add macro to check file state on reading
trace-cmd library: Introduce sections in trace file reading logic
trace-cmd library: Initialize internal sections database on file read
trace-cmd library: Use sections database when reading parts of the
trace file
trace-cmd library: Set log size to the input tep handler when it is
read from the file
trace-cmd library: Fix possible memory leak in read_ftrace_files()
trace-cmd library: Fix possible memory leak in read_event_files()
trace-cmd library: Fix possible memory leak in read_proc_kallsyms()
trace-cmd library: Fix possible memory leak in read_ftrace_printk()
trace-cmd library: Fix possible memory leak in
read_and_parse_cmdlines()
trace-cmd library: Track maximum CPUs count in input handler
trace-cmd library: Set input handler default values in allocation
function
trace-cmd library: Read headers from trace file version 7
tarce-cmd library: Do not use local variables when reading CPU stat
option
trace-cmd library: Read handle header and compression of the option
section
trace-cmd library: Read extended BUFFER option
trace-cmd library: Handle the extended DONE option
trace-cmd library: Read compression header
trace-cmd library: Extend the input handler with trace data
decompression context
trace-cmd library: Initialize CPU data decompression logic
trace-cmd library: Initialize CPU data for reading from version 7
trace files
trace-cmd library: Add logic for in-memory decompression
trace-cmd library: Handle latency trace in version 7 files
trace-cmd library: Handle buffer trace data init for version 7 files
trace-cmd report: Use the new latency API to read data
trace-cmd report: Close input file handlers on exit
trace-cmd report: Do not print empty buffer name
trace-cmd report: Init the top trace instance earlier
trace-cmd: Call additional APIs when creating trace file
trace-cmd dump: Add helpers for processing trace file version 7
trace-cmd dump: Print compression header
trace-cmd dump: Add helpers for processing trace file sections
trace-cmd dump: Read recursively all options sections
trace-cmd dump: Read extended BUFFER option
trace-cmd dump: Dump sections
trace-cmd dump: Dump trace file version 7
trace-cmd dump: Dump sections content
trace-cmd dump: Add new argument --sections
trace-cmd dump: Align better the output of flyrecord dump
trace-cmd library: Add zlib compression algorithm
trace-cmd library: Reuse local function that writes to output handler
trace-cmd library: Use output handler when copying data from input
file
trace-cmd library: Handle version 7 files when copying headers between
files
tarce-cmd library: Copy CPU count between trace files
tarce-cmd library: New API to copy buffer description between trace
files
tarce-cmd library: New API to copy options between trace files
tarce-cmd library: New API to copy trace data between trace files
trace-cmd library: Extend tracecmd_copy() API
trace-cmd library: Set correct CPU to the record, retrieved with
tracecmd_peek_data
trace-cmd: Add new subcommand "convert"
trace-cmd report: Add new parameters for version 7 trace files
trace-cmd: Update bash completion
tarce-cmd: Man page for "trace-cmd convert"
tarce-cmd: Update record man page
trace-cmd: Document trace file version 7
.../trace-cmd/trace-cmd-convert.1.txt | 65 +
Documentation/trace-cmd/trace-cmd-list.1.txt | 3 +
.../trace-cmd/trace-cmd-record.1.txt | 13 +
Documentation/trace-cmd/trace-cmd.1.txt | 4 +-
...e-cmd.dat.5.txt => trace-cmd.dat.v6.5.txt} | 8 +-
.../trace-cmd/trace-cmd.dat.v7.5.txt | 442 ++++
Makefile | 7 +
include/trace-cmd/trace-cmd.h | 5 +
lib/trace-cmd/Makefile | 8 +
.../include/private/trace-cmd-private.h | 115 +-
lib/trace-cmd/include/trace-cmd-local.h | 63 +-
lib/trace-cmd/trace-compress-zlib.c | 109 +
lib/trace-cmd/trace-compress.c | 910 +++++++
lib/trace-cmd/trace-input.c | 2134 ++++++++++++++---
lib/trace-cmd/trace-msg.c | 131 +-
lib/trace-cmd/trace-output.c | 1685 ++++++++++---
lib/trace-cmd/trace-util.c | 45 +-
tracecmd/Makefile | 5 +
tracecmd/include/trace-local.h | 2 +
tracecmd/trace-cmd.bash | 37 +
tracecmd/trace-cmd.c | 1 +
tracecmd/trace-convert.c | 106 +
tracecmd/trace-dump.c | 458 +++-
tracecmd/trace-list.c | 26 +
tracecmd/trace-listen.c | 8 +-
tracecmd/trace-read.c | 39 +-
tracecmd/trace-record.c | 141 +-
tracecmd/trace-restore.c | 37 +-
tracecmd/trace-split.c | 5 +-
tracecmd/trace-usage.c | 21 +-
30 files changed, 5725 insertions(+), 908 deletions(-)
create mode 100644 Documentation/trace-cmd/trace-cmd-convert.1.txt
rename Documentation/trace-cmd/{trace-cmd.dat.5.txt => trace-cmd.dat.v6.5.txt} (98%)
create mode 100644 Documentation/trace-cmd/trace-cmd.dat.v7.5.txt
create mode 100644 lib/trace-cmd/trace-compress-zlib.c
create mode 100644 lib/trace-cmd/trace-compress.c
create mode 100644 tracecmd/trace-convert.c
--
2.31.1
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