linux-kernel - Re: [patch] x86: reduce srat verbosity in the kernel log

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Message-ID: <4AE8B197.8000606@sgi.com>
Date:	Wed, 28 Oct 2009 14:03:19 -0700
From:	Mike Travis <travis@....com>
To:	David Rientjes <rientjes@...gle.com>
CC:	Andi Kleen <andi@...stfloor.org>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jack Steiner <steiner@....com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Yinghai Lu <yinghai@...nel.org>, Mel Gorman <mel@....ul.ie>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [patch] x86: reduce srat verbosity in the kernel log



David Rientjes wrote:
> On Wed, 28 Oct 2009, Mike Travis wrote:
> 
>> I don't understand the importance of this when the memory is given back
>> after the system starts up anyway...?
>>
> 
> Printing a list of apic ids longer than 128 characters would pollute the 
> kernel log and this upper bound will probably never be reached based on 
> the way apic ids are created for physical and logical processors: they are 
> normally reduced to ranges instead of comma seperated entities.

Your latest patch tested:

[    0.000000] SRAT: PXM 0 -> APIC {0-7,16-23} -> Node 0
[    0.000000] SRAT: PXM 1 -> APIC {32-39,48-55} -> Node 1
[    0.000000] SRAT: PXM 2 -> APIC {64-71,80-87} -> Node 2
[    0.000000] SRAT: PXM 3 -> APIC {96-103,112-119} -> Node 3
[    0.000000] SRAT: PXM 4 -> APIC {128-135,144-151} -> Node 4
[    0.000000] SRAT: PXM 5 -> APIC {160-167,176-183} -> Node 5
[    0.000000] SRAT: PXM 6 -> APIC {192-199,208-215} -> Node 6
[    0.000000] SRAT: PXM 7 -> APIC {224-231,240-247} -> Node 7
[    0.000000] SRAT: PXM 8 -> APIC {256-263,272-279} -> Node 8
[    0.000000] SRAT: PXM 9 -> APIC {288-295,304-311} -> Node 9
[    0.000000] SRAT: PXM 10 -> APIC {320-327,336-343} -> Node 10
[    0.000000] SRAT: PXM 11 -> APIC {352-359,368-375} -> Node 11
[    0.000000] SRAT: PXM 12 -> APIC {384-391,400-407} -> Node 12
[    0.000000] SRAT: PXM 13 -> APIC {416-423,432-439} -> Node 13
[    0.000000] SRAT: PXM 14 -> APIC {448-455,464-471} -> Node 14
[    0.000000] SRAT: PXM 15 -> APIC {480-487,496-503} -> Node 15
[    0.000000] SRAT: PXM 16 -> APIC {512-519,528-535} -> Node 16
[    0.000000] SRAT: PXM 17 -> APIC {544-551,560-567} -> Node 17
[    0.000000] SRAT: PXM 18 -> APIC {576-583,592-599} -> Node 18
[    0.000000] SRAT: PXM 19 -> APIC {608-615,624-631} -> Node 19
[    0.000000] SRAT: PXM 20 -> APIC {640-647,656-663} -> Node 20
[    0.000000] SRAT: PXM 21 -> APIC {672-679,688-695} -> Node 21
[    0.000000] SRAT: PXM 22 -> APIC {704-711,720-727} -> Node 22
[    0.000000] SRAT: PXM 23 -> APIC {736-743,752-759} -> Node 23
[    0.000000] SRAT: PXM 24 -> APIC {768-775,784-791} -> Node 24
[    0.000000] SRAT: PXM 25 -> APIC {800-807,816-823} -> Node 25
[    0.000000] SRAT: PXM 26 -> APIC {832-839,848-855} -> Node 26
[    0.000000] SRAT: PXM 27 -> APIC {864-871,880-887} -> Node 27
[    0.000000] SRAT: PXM 28 -> APIC {896-903,912-919} -> Node 28
[    0.000000] SRAT: PXM 29 -> APIC {928-935,944-951} -> Node 29
[    0.000000] SRAT: PXM 30 -> APIC {960-967,976-983} -> Node 30
[    0.000000] SRAT: PXM 31 -> APIC {992-999,1008-1015} -> Node 31
[    0.000000] SRAT: PXM 32 -> APIC {1024-1031,1040-1047} -> Node 32
[    0.000000] SRAT: PXM 33 -> APIC {1056-1063,1072-1079} -> Node 33
[    0.000000] SRAT: PXM 34 -> APIC {1088-1095,1104-1111} -> Node 34
[    0.000000] SRAT: PXM 35 -> APIC {1120-1127,1136-1143} -> Node 35
[    0.000000] SRAT: PXM 36 -> APIC {1152-1159,1168-1175} -> Node 36
[    0.000000] SRAT: PXM 37 -> APIC {1184-1191,1200-1207} -> Node 37
[    0.000000] SRAT: PXM 38 -> APIC {1216-1223,1232-1239} -> Node 38
[    0.000000] SRAT: PXM 39 -> APIC {1248-1255,1264-1271} -> Node 39                                                                                             
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