From: ada@thorsis.com (Alexander Dahl)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 0/6] clocksource: rework Atmel TCB timer driver
Date: Wed, 28 Mar 2018 12:29:20 +0200 [thread overview]
Message-ID: <4073350.0MmxRoANOi@ada> (raw)
In-Reply-To: <989df8a3-462a-c645-87f1-9f956e1b22c9@linaro.org>
Hello Daniel,
Am Dienstag, 27. M?rz 2018, 13:30:22 CEST schrieb Daniel Lezcano:
> Can you can give a rough amount for the irq rate on the timer ?
I used itop [1] now to get a rough estimate. First with kernel v4.14.29-rt25
(fully preempt RT):
INT NAME RATE MAX
19 [ vel tc_clkevt] 397 Ints/s (max: 432)
26 [ vel eth0] 4 Ints/s (max: 38)
Next test with kernel v4.15.13 gives (slightly slower, but non-RT):
INT NAME RATE MAX
19 [ vel tc_clkevt] 248 Ints/s (max: 273)
26 [ vel eth0] 4 Ints/s (max: 11)
With kernel v4.16-rc7 plus this patch series and tcb as clocksource:
INT NAME RATE MAX
17 [vel timer at fffa] 2164 Ints/s (max: 2183)
26 [ vel eth0] 5 Ints/s (max: 10)
Is this the information you wanted? If not, could you point me on how to get
the requested irq rate?
Greets
Alex
[1] https://packages.debian.org/stretch/itop
next prev parent reply other threads:[~2018-03-28 10:29 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-23 17:15 [PATCH v3 0/6] clocksource: rework Atmel TCB timer driver Alexandre Belloni
2018-02-23 17:15 ` [PATCH v3 1/6] ARM: at91: add TCB registers definitions Alexandre Belloni
2018-02-23 17:15 ` [PATCH v3 2/6] clocksource/drivers: Add a new driver for the Atmel ARM TC blocks Alexandre Belloni
2018-02-23 17:15 ` [PATCH v3 3/6] clocksource/drivers: atmel-pit: make option silent Alexandre Belloni
2018-02-23 17:15 ` [PATCH v3 4/6] ARM: at91: Implement clocksource selection Alexandre Belloni
2018-02-23 17:15 ` [PATCH v3 5/6] ARM: configs: at91: use new TCB timer driver Alexandre Belloni
2018-02-23 17:15 ` [PATCH v3 6/6] ARM: configs: at91: unselect PIT Alexandre Belloni
2018-03-22 15:33 ` [PATCH v3 0/6] clocksource: rework Atmel TCB timer driver Alexandre Belloni
2018-03-27 10:41 ` Alexander Dahl
2018-03-27 11:30 ` Daniel Lezcano
2018-03-28 10:29 ` Alexander Dahl [this message]
2018-03-28 13:03 ` Daniel Lezcano
2018-03-28 14:16 ` Alexandre Belloni
2018-03-28 14:36 ` Daniel Lezcano
2018-03-28 15:31 ` Alexandre Belloni
2018-03-28 15:50 ` Alexandre Belloni
2018-03-29 8:01 ` Alexander Dahl
2018-03-29 10:45 ` Alexandre Belloni
2018-03-29 11:31 ` Alexander Dahl
2018-03-29 11:42 ` Alexandre Belloni
2018-03-29 12:07 ` Daniel Lezcano
2018-03-29 13:02 ` Alexandre Belloni
2018-03-29 15:11 ` Alexander Dahl
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