From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v2 08/18] trace-cmd: Save tsc2nsec clock in trace.dat file
Date: Mon, 22 Mar 2021 11:59:35 +0200 [thread overview]
Message-ID: <20210322095945.259300-9-tz.stoyanov@gmail.com> (raw)
In-Reply-To: <20210322095945.259300-1-tz.stoyanov@gmail.com>
When tsc2nsec clock is used, save it as selected clock in the trace.dat
file. When reading the file, in case of tsc2nsec clock show timestamps
in usec / nsec.
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
lib/trace-cmd/include/private/trace-cmd-private.h | 2 ++
lib/trace-cmd/trace-input.c | 2 +-
tracecmd/trace-record.c | 9 +++++----
3 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/lib/trace-cmd/include/private/trace-cmd-private.h b/lib/trace-cmd/include/private/trace-cmd-private.h
index ce3d8dc0..c33d067a 100644
--- a/lib/trace-cmd/include/private/trace-cmd-private.h
+++ b/lib/trace-cmd/include/private/trace-cmd-private.h
@@ -22,6 +22,8 @@
#define TRACECMD_ERROR(ret) ((void *)((unsigned long)(ret) | TRACECMD_ERR_MSK))
#define TRACECMD_PTR2ERR(ptr) ((unisgned long)(ptr) & ~TRACECMD_ERR_MSK)
+#define TSCNSEC_CLOCK "tsc2nsec"
+
void tracecmd_parse_cmdlines(struct tep_handle *pevent, char *file, int size);
void tracecmd_parse_proc_kallsyms(struct tep_handle *pevent, char *file, unsigned int size);
void tracecmd_parse_ftrace_printk(struct tep_handle *pevent, char *file, unsigned int size);
diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c
index ebc28f7b..67915f25 100644
--- a/lib/trace-cmd/trace-input.c
+++ b/lib/trace-cmd/trace-input.c
@@ -2906,7 +2906,7 @@ static void extract_trace_clock(struct tracecmd_input *handle, char *line)
/* Clear usecs if not one of the specified clocks */
if (strcmp(clock, "local") && strcmp(clock, "global") &&
strcmp(clock, "uptime") && strcmp(clock, "perf") &&
- strncmp(clock, "mono", 4))
+ strncmp(clock, "mono", 4) && strcmp(clock, TSCNSEC_CLOCK))
handle->flags &= ~TRACECMD_FL_IN_USECS;
}
diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c
index 37a0f486..9ae6e032 100644
--- a/tracecmd/trace-record.c
+++ b/tracecmd/trace-record.c
@@ -58,7 +58,6 @@
#define STAMP "stamp"
#define FUNC_STACK_TRACE "func_stack_trace"
#define TSC_CLOCK "x86-tsc"
-#define TSCNSEC_CLOCK "tsc2nsec"
enum trace_type {
TRACE_TYPE_RECORD = 1,
@@ -4168,7 +4167,8 @@ static void write_guest_file(struct buffer_instance *instance)
handle = tracecmd_get_output_handle_fd(fd);
if (!handle)
die("error writing to %s", file);
-
+ if (instance->flags & BUFFER_FL_TSC2NSEC)
+ tracecmd_set_out_clock(handle, TSCNSEC_CLOCK);
temp_files = malloc(sizeof(*temp_files) * cpu_count);
if (!temp_files)
die("failed to allocate temp_files for %d cpus",
@@ -4290,9 +4290,10 @@ static void record_data(struct common_record_context *ctx)
add_guest_info(handle, instance);
}
- if (ctx->tsc2nsec.mult)
+ if (ctx->tsc2nsec.mult) {
add_tsc2nsec(handle, &ctx->tsc2nsec);
-
+ tracecmd_set_out_clock(handle, TSCNSEC_CLOCK);
+ }
if (tracecmd_write_cmdlines(handle))
die("Writing cmdlines");
--
2.30.2
next prev parent reply other threads:[~2021-03-22 10:01 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-22 9:59 [PATCH v2 00/18] TSC trace clock to nanosecond conversion Tzvetomir Stoyanov (VMware)
2021-03-22 9:59 ` [PATCH v2 01/18] trace-cmd: Add initial perf interface in trace-cmd library Tzvetomir Stoyanov (VMware)
2021-03-24 0:47 ` Steven Rostedt
2021-03-22 9:59 ` [PATCH v2 02/18] trace-cmd: Extend trace-cmd dump subcommand to display the clock Tzvetomir Stoyanov (VMware)
2021-03-22 9:59 ` [PATCH v2 03/18] trace-cmd: Save only the selected clock in the trace.dat file Tzvetomir Stoyanov (VMware)
2021-03-24 0:52 ` Steven Rostedt
2021-03-24 9:10 ` Tzvetomir Stoyanov
2021-03-22 9:59 ` [PATCH v2 04/18] trace-cmd: Add new trace-cmd clock tsc2nsec Tzvetomir Stoyanov (VMware)
2021-03-24 1:24 ` Steven Rostedt
2021-03-22 9:59 ` [PATCH v2 05/18] trace-cmd: Add a new option in trace file metadata for tsc2nsec conversion Tzvetomir Stoyanov (VMware)
2021-03-24 1:26 ` Steven Rostedt
2021-03-22 9:59 ` [PATCH v2 06/18] trace-cmd: Save information for tsc to nanoseconds conversion in trace file Tzvetomir Stoyanov (VMware)
2021-03-22 9:59 ` [PATCH v2 07/18] trace-cmd: Read information for tsc to nanoseconds conversion from " Tzvetomir Stoyanov (VMware)
2021-03-22 9:59 ` Tzvetomir Stoyanov (VMware) [this message]
2021-03-24 1:33 ` [PATCH v2 08/18] trace-cmd: Save tsc2nsec clock in trace.dat file Steven Rostedt
2021-03-24 4:58 ` Tzvetomir Stoyanov
2021-03-22 9:59 ` [PATCH v2 09/18] trace-cmd: Append new options into guest trace file at the end of the tracing session Tzvetomir Stoyanov (VMware)
2021-03-22 9:59 ` [PATCH v2 10/18] trace-cmd: Remove unneeded multiply in events timestamp reading Tzvetomir Stoyanov (VMware)
2021-03-22 9:59 ` [PATCH v2 11/18] trace-cmd: Perform all timestamp corrections in a single function Tzvetomir Stoyanov (VMware)
2021-03-24 1:38 ` Steven Rostedt
2021-03-22 9:59 ` [PATCH v2 12/18] trace-cmd: Convert tsc timestamps to nanosecods when reading trace data from a file Tzvetomir Stoyanov (VMware)
2021-03-24 1:41 ` Steven Rostedt
2021-03-22 9:59 ` [PATCH v2 13/18] trace-cmd: Set order and priorities when applying timestamp corrections Tzvetomir Stoyanov (VMware)
2021-03-24 1:44 ` Steven Rostedt
2021-03-22 9:59 ` [PATCH v2 14/18] trace-cmd: Add a new flag to disable any " Tzvetomir Stoyanov (VMware)
2021-03-24 1:49 ` Steven Rostedt
2021-03-24 12:10 ` Tzvetomir Stoyanov
2021-03-24 12:15 ` Steven Rostedt
2021-03-22 9:59 ` [PATCH v2 15/18] trace-cmd: Add new parameter "--raw-ts" to "trace-cmd report" command Tzvetomir Stoyanov (VMware)
2021-03-22 9:59 ` [PATCH v2 16/18] trace-cmd: Print times in TimeShift options as unsigned in trace-cmd dump Tzvetomir Stoyanov (VMware)
2021-03-22 9:59 ` [PATCH v2 17/18] trace-cmd: Use tsc clock for host-guest tracing, if available Tzvetomir Stoyanov (VMware)
2021-03-22 9:59 ` [PATCH v2 18/18] trace-cmd: Get current clock for host-guest tracing session Tzvetomir Stoyanov (VMware)
2021-03-24 1:52 ` Steven Rostedt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210322095945.259300-9-tz.stoyanov@gmail.com \
--to=tz.stoyanov@gmail.com \
--cc=linux-trace-devel@vger.kernel.org \
--cc=rostedt@goodmis.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).