From: "Yordan Karadzhov (VMware)" <y.karadz@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org,
"Yordan Karadzhov (VMware)" <y.karadz@gmail.com>
Subject: [PATCH 12/15] kernel-shark: Add ksmodel_get_bin()
Date: Tue, 29 Sep 2020 16:41:20 +0300 [thread overview]
Message-ID: <20200929134123.178688-13-y.karadz@gmail.com> (raw)
In-Reply-To: <20200929134123.178688-1-y.karadz@gmail.com>
The method retrieves the Id of the bin of the model that contains
given entry.
Signed-off-by: Yordan Karadzhov (VMware) <y.karadz@gmail.com>
---
src/libkshark-model.c | 27 +++++++++++++++++++++++++++
src/libkshark-model.h | 3 +++
2 files changed, 30 insertions(+)
diff --git a/src/libkshark-model.c b/src/libkshark-model.c
index f3864bf..2301b06 100644
--- a/src/libkshark-model.c
+++ b/src/libkshark-model.c
@@ -1325,3 +1325,30 @@ ksmodel_get_task_missed_events(struct kshark_trace_histo *histo,
match_pid_missed_events, sd, &pid,
col, index);
}
+
+/**
+ * @brief Find the bin Id of a give entry.
+ *
+ * @param histo: Input location for the model descriptor.
+ * @param entry: Input location for entry.
+ *
+ * @returns If the timestamp of the entry is inside the range of the model the
+ * function returns the Id of the bin it belongs to.
+ * If the timestamp of the entry is outside of the range of the model
+ * the function returns UPPER_OVERFLOW_BIN or LOWER_OVERFLOW_BIN
+ * (negative values).
+ */
+int ksmodel_get_bin(struct kshark_trace_histo *histo,
+ const struct kshark_entry *entry)
+{
+ if (entry->ts < histo->min)
+ return UPPER_OVERFLOW_BIN;
+
+ if (entry->ts > histo->max)
+ return LOWER_OVERFLOW_BIN;
+
+ if (entry->ts == histo->max)
+ return histo->n_bins - 1;
+
+ return (entry->ts - histo->min) / histo->bin_size;
+}
diff --git a/src/libkshark-model.h b/src/libkshark-model.h
index b862480..8989ee0 100644
--- a/src/libkshark-model.h
+++ b/src/libkshark-model.h
@@ -175,6 +175,9 @@ static inline double ksmodel_bin_time(struct kshark_trace_histo *histo,
return ksmodel_bin_ts(histo, bin) * 1e-9;
}
+int ksmodel_get_bin(struct kshark_trace_histo *histo,
+ const struct kshark_entry *entry);
+
#ifdef __cplusplus
}
#endif // __cplusplus
--
2.25.1
next prev parent reply other threads:[~2020-09-29 13:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-29 13:41 [PATCH 00/15] Start KernelShark v2 transformation Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 01/15] kernel-shark: split kernel-shark from trace-cmd repo Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 02/15] kernel-shark: Version 1.2.0 Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 03/15] kernel-shark: Start introducing KernelShark 2.0 Yordan Karadzhov (VMware)
2020-10-07 20:08 ` Steven Rostedt
2020-09-29 13:41 ` [PATCH 04/15] kernel-shark: Use only signed types in kshark_entry Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 05/15] kernel-shark: Introduce libkshark-hash Yordan Karadzhov (VMware)
2020-10-06 21:02 ` Steven Rostedt
2020-09-29 13:41 ` [PATCH 06/15] kernel-shark: Introduce Data streams Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 07/15] kernel-shark: Add stream_id to kshark_entry Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 08/15] kernel-shark: Integrate the stream definitions with the C API Yordan Karadzhov (VMware)
2020-10-07 20:12 ` Steven Rostedt
2020-10-08 7:17 ` Yordan Karadzhov (VMware)
2020-10-07 20:29 ` Steven Rostedt
2020-09-29 13:41 ` [PATCH 09/15] kernel-shark: Provide merging of multiple data streams Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 10/15] kernel-shark: Integrate the stream definitions with data model Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 11/15] kernel-shark: Use only signed types for model defs Yordan Karadzhov (VMware)
2020-09-29 13:41 ` Yordan Karadzhov (VMware) [this message]
2020-09-29 13:41 ` [PATCH 13/15] kernel-shark: Protect ksmodel_set_in_range_bining() Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 14/15] kernel-shark: Add methods for time calibration Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 15/15] kernel-shark: Integrate streams with libkshark-configio Yordan Karadzhov (VMware)
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