From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v3 08/25] trace-cmd list: Show supported compression algorithms
Date: Wed, 12 May 2021 09:38:06 +0300 [thread overview]
Message-ID: <20210512063823.324610-9-tz.stoyanov@gmail.com> (raw)
In-Reply-To: <20210512063823.324610-1-tz.stoyanov@gmail.com>
Add new parameter "trace-cmd list -c" to show supported compression
algorithms.
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
tracecmd/trace-list.c | 26 ++++++++++++++++++++++++++
tracecmd/trace-usage.c | 1 +
2 files changed, 27 insertions(+)
diff --git a/tracecmd/trace-list.c b/tracecmd/trace-list.c
index d060c810..900da73b 100644
--- a/tracecmd/trace-list.c
+++ b/tracecmd/trace-list.c
@@ -549,6 +549,24 @@ static void show_plugins(void)
tep_free(pevent);
}
+static void show_compression(void)
+{
+ char **versions, **names;
+ int c, i;
+
+ c = tracecmd_compress_protos_get(&names, &versions);
+ if (c <= 0) {
+ printf("No compression algorithms are supported\n");
+ return;
+ }
+ printf("Supported compression algorithms:\n");
+ for (i = 0; i < c; i++)
+ printf("\t%s, %s\n", names[i], versions[i]);
+
+ free(names);
+ free(versions);
+}
+
void trace_list(int argc, char **argv)
{
int events = 0;
@@ -562,6 +580,7 @@ void trace_list(int argc, char **argv)
int flags = 0;
int systems = 0;
int show_all = 1;
+ int compression = 0;
int i;
const char *arg;
const char *funcre = NULL;
@@ -626,6 +645,10 @@ void trace_list(int argc, char **argv)
systems = 1;
show_all = 0;
break;
+ case 'c':
+ compression = 1;
+ show_all = 0;
+ break;
case '-':
if (strcmp(argv[i], "--debug") == 0) {
tracecmd_set_debug(true);
@@ -670,6 +693,8 @@ void trace_list(int argc, char **argv)
show_clocks();
if (systems)
show_systems();
+ if (compression)
+ show_compression();
if (show_all) {
printf("event systems:\n");
show_systems();
@@ -679,6 +704,7 @@ void trace_list(int argc, char **argv)
show_tracers();
printf("\noptions:\n");
show_options();
+ show_compression();
}
return;
diff --git a/tracecmd/trace-usage.c b/tracecmd/trace-usage.c
index 998f5a24..c388eccd 100644
--- a/tracecmd/trace-usage.c
+++ b/tracecmd/trace-usage.c
@@ -330,6 +330,7 @@ static struct usage_help usage_help[] = {
" -O list plugin options\n"
" -B list defined buffer instances\n"
" -C list the defined clocks (and active one)\n"
+ " -c list the supported trace file compression algorithms\n"
},
{
"restore",
--
2.31.1
next prev parent reply other threads:[~2021-05-12 6:38 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-12 6:37 [PoC PATCH v3 00/25] Add trace file compression Tzvetomir Stoyanov (VMware)
2021-05-12 6:37 ` [PATCH v3 01/25] trace-cmd library: Remove unused private APIs for creating trace files Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 02/25] trace-cmd library: Remove unused API tracecmd_update_option Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 03/25] trace-cmd: Check if file version is supported Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 04/25] trace-cmd library: Add new API to get file version of input handler Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 05/25] trace-cmd library: Select the file version when writing trace file Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 06/25] trace-cmd: Add APIs for library initialization and free Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 07/25] trace-cmd library: Add support for compression algorithms Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` Tzvetomir Stoyanov (VMware) [this message]
2021-05-12 6:38 ` [PATCH v3 09/25] trace-cmd library: Bump the trace file version to 7 Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 10/25] trace-cmd library: Compress part of the trace file Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 11/25] trace-cmd library: Read compressed " Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 12/25] trace-cmd library: Add new API to get compression of input handler Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 13/25] trace-cmd library: Inherit compression algorithm from input file Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 14/25] trace-cmd library: Extend the create file APIs to support different compression Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 15/25] trace-cmd record: Add new parameter --compression Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 16/25] trace-cmd dump: Add support for trace files version 7 Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 17/25] trace-cmd library: Add support for zlib compression library Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 18/25] trace-cmd library: Hide the logic for updating buffer offset Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 19/25] trace-cmd: Move buffers description outside of options Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 20/25] trace-cmd library: Track the offset in the option section in the trace file Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 21/25] trace-cmd library: Add compression of the option section of " Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 22/25] trace-cmd library: Refactor the logic for writing trace data in the file Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 23/25] trace-cmd library: Add APIs for read and write compressed data in chunks Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 24/25] trace-cmd: Compress trace data Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 25/25] trace-cmd: Read compressed " Tzvetomir Stoyanov (VMware)
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