From: William Cohen <wcohen@redhat.com>
To: systemtap@sourceware.org
Subject: missing sytemtap kernel.trace("net*") on newer Fedora kernels
Date: Wed, 11 Jun 2014 21:33:00 -0000 [thread overview]
Message-ID: <5398CB2C.9000001@redhat.com> (raw)
I was looking at the perf netdev-times script:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/tools/perf/scripts/python/bin/netdev-times-record
Which uses the following perf tracepoints:
#!/bin/bash
perf record -e net:net_dev_xmit -e net:net_dev_queue \
-e net:netif_receive_skb -e net:netif_rx \
-e skb:consume_skb -e skb:kfree_skb \
-e skb:skb_copy_datagram_iovec -e napi:napi_poll \
-e irq:irq_handler_entry -e irq:irq_handler_exit \
-e irq:softirq_entry -e irq:softirq_exit \
-e irq:softirq_raise $@
On the rhel7 kernel all of the tracepoints are available, However, on Fedora 20 none of the kernel.trace("net*"), kernel.trace("*skb*"), or kernel.trace("napi_poll") tracepoints are there.
Has anyone else noticed the missing tracepoints on Fedora 20?
-Will
next reply other threads:[~2014-06-11 21:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-11 21:33 William Cohen [this message]
2014-06-11 23:04 ` Josh Stone
2014-06-12 15:52 ` William Cohen
2014-06-12 1:51 ` Frank Ch. Eigler
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