From 865911d74384f66139b6693e688509d32717ca08 Mon Sep 17 00:00:00 2001
From: Martin Teichmann <martin.teichmann@xfel.eu>
Date: Fri, 26 Feb 2021 13:15:18 +0000
Subject: [PATCH] more statistics for the Counter
---
ebpfcat/devices.py | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/ebpfcat/devices.py b/ebpfcat/devices.py
index ffaa842..047610c 100644
--- a/ebpfcat/devices.py
+++ b/ebpfcat/devices.py
@@ -114,15 +114,19 @@ class Counter(Device):
count = DeviceVar("I")
lasttime = DeviceVar("Q")
maxtime = DeviceVar("Q", write=True)
+ squared = DeviceVar("Q", write=True)
def program(self):
self.count += 1
with self.ebpf.tmp:
- self.ebpf.tmp = ktime(self.ebpf)
- with self.lasttime, self.ebpf.tmp - self.lasttime > self.maxtime:
- self.maxtime = self.ebpf.tmp - self.lasttime
- self.lasttime = self.ebpf.tmp
+ self.ebpf.tmp = self.lasttime
+ self.lasttime = ktime(self.ebpf)
+ with self.ebpf.tmp != 0:
+ self.ebpf.tmp = self.lasttime - self.ebpf.tmp
+ with self.ebpf.tmp > self.maxtime:
+ self.maxtime = self.ebpf.tmp
+ self.squared += self.ebpf.tmp * self.ebpf.tmp
def update(self):
self.count += 1
--
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