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From: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: linux-block@vger.kernel.org, linux-doc@vger.kernel.org,
	Marcos Paulo de Souza <marcos.souza.org@gmail.com>,
	Jonathan Corbet <corbet@lwn.net>
Subject: [PATCH 4/4] Documentation:kernel-per-CPU-kthreads.txt: Remove reference to elevator=
Date: Sun, 14 Jul 2019 02:34:53 -0300
Message-ID: <20190714053453.1655-5-marcos.souza.org@gmail.com> (raw)
In-Reply-To: <20190714053453.1655-1-marcos.souza.org@gmail.com>

This argument was not being considered since blk-mq was set by default,
so removed this documentation to avoid confusion.

Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
---
 Documentation/kernel-per-CPU-kthreads.txt | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/Documentation/kernel-per-CPU-kthreads.txt b/Documentation/kernel-per-CPU-kthreads.txt
index 5623b9916411..c68c6c8c26a4 100644
--- a/Documentation/kernel-per-CPU-kthreads.txt
+++ b/Documentation/kernel-per-CPU-kthreads.txt
@@ -274,9 +274,7 @@ To reduce its OS jitter, do any of the following:
 		(based on an earlier one from Gilad Ben-Yossef) that
 		reduces or even eliminates vmstat overhead for some
 		workloads at https://lkml.org/lkml/2013/9/4/379.
-	e.	Boot with "elevator=noop" to avoid workqueue use by
-		the block layer.
-	f.	If running on high-end powerpc servers, build with
+	e.	If running on high-end powerpc servers, build with
 		CONFIG_PPC_RTAS_DAEMON=n.  This prevents the RTAS
 		daemon from running on each CPU every second or so.
 		(This will require editing Kconfig files and will defeat
@@ -284,12 +282,12 @@ To reduce its OS jitter, do any of the following:
 		due to the rtas_event_scan() function.
 		WARNING:  Please check your CPU specifications to
 		make sure that this is safe on your particular system.
-	g.	If running on Cell Processor, build your kernel with
+	f.	If running on Cell Processor, build your kernel with
 		CBE_CPUFREQ_SPU_GOVERNOR=n to avoid OS jitter from
 		spu_gov_work().
 		WARNING:  Please check your CPU specifications to
 		make sure that this is safe on your particular system.
-	h.	If running on PowerMAC, build your kernel with
+	g.	If running on PowerMAC, build your kernel with
 		CONFIG_PMAC_RACKMETER=n to disable the CPU-meter,
 		avoiding OS jitter from rackmeter_do_timer().
 
-- 
2.22.0


      parent reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-14  5:34 [PATCH 0/4] Remove elevator kernel parameter Marcos Paulo de Souza
2019-07-14  5:34 ` [PATCH 1/4] block: elevator.c: Remove now unused elevator= argument Marcos Paulo de Souza
2019-07-14  5:34 ` [PATCH 2/4] kernel-parameters.txt: Remove elevator argument Marcos Paulo de Souza
2019-07-14  5:34 ` [PATCH 3/4] Documenation: switching-sched: Remove notes about " Marcos Paulo de Souza
2019-07-14  5:34 ` Marcos Paulo de Souza [this message]

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