[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Xen-devel] [PATCH v3] mm/page_alloc: make bootscrub happen in idle-loop
- To: Wei Liu <wei.liu2@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>
- From: Sergey Dyasli <sergey.dyasli@xxxxxxxxxx>
- Date: Wed, 7 Nov 2018 16:36:08 +0000
- Autocrypt: addr=sergey.dyasli@xxxxxxxxxx; keydata= xsFNBFtMVHEBEADc/hZcLexrB6vGTdGqEUsYZkFGQh6Z1OO7bCtM1go1RugSMeq9tkFHQSOc 9c7W9NVQqLgn8eefikIHxgic6tGgKoIQKcPuSsnqGao2YabsTSSoeatvmO5HkR0xGaUd+M6j iqv3cD7/WL602NhphT4ucKXCz93w0TeoJ3gleLuILxmzg1gDhKtMdkZv6TngWpKgIMRfoyHQ jsVzPbTTjJl/a9Cw99vuhFuEJfzbLA80hCwhoPM+ZQGFDcG4c25GQGQFFatpbQUhNirWW5b1 r2yVOziSJsvfTLnyzEizCvU+r/Ek2Kh0eAsRFr35m2X+X3CfxKrZcePxzAf273p4nc3YIK9h cwa4ZpDksun0E2l0pIxg/pPBXTNbH+OX1I+BfWDZWlPiPxgkiKdgYPS2qv53dJ+k9x6HkuCy i61IcjXRtVgL5nPGakyOFQ+07S4HIJlw98a6NrptWOFkxDt38x87mSM7aSWp1kjyGqQTGoKB VEx5BdRS5gFdYGCQFc8KVGEWPPGdeYx9Pj2wTaweKV0qZT69lmf/P5149Pc81SRhuc0hUX9K DnYBa1iSHaDjifMsNXKzj8Y8zVm+J6DZo/D10IUxMuExvbPa/8nsertWxoDSbWcF1cyvZp9X tUEukuPoTKO4Vzg7xVNj9pbK9GPxSYcafJUgDeKEIlkn3iVIPwARAQABzShTZXJnZXkgRHlh c2xpIDxzZXJnZXkuZHlhc2xpQGNpdHJpeC5jb20+wsGOBBMBCgA4FiEEkI7HMI5EbM2FLA1L Aa+w5JvbyusFAltMVHECGwMFCwkIBwIGFQoJCAsCBBYCAwECHgECF4AACgkQAa+w5JvbyuuQ JBAAry/oRK6m0I+ck1Tarz9a1RrF73r1YoJUk5Bw+PSxsBJOPp3vDeAz3Kqw58qmBXeNlMU4 1cqAxFxCCKMtER1gpmrKWBA1/H1ZoBRtzhaHgPTQLyR7LB1OgdpgwEOjN1Q5gME8Pk21y/3N cG5YBgD/ZHbq8nWS/G3r001Ie3nX55uacGk/Ry175cS48+asrerShKMDNMT1cwimo9zH/3Lm RTpWloh2dG4jjwtCXqB7s+FEE5wQVCpPp9p55+9pPd+3DXmsQEcJ/28XHo/UJW663WjRlRc4 wgPwiC9Co1HqaMKSzdPpZmI5D4HizWH8jF7ppUjWoPapwk4dEA7Al0vx1Bz3gbJAL8DaRgQp H4j/16ifletfGUNbHJR2vWljZ5SEf2vMVcdubf9eFUfBF/9OOR1Kcj1PISP8sPhcP7oCfFtH RcxXh1OStrRFtltJt2VlloKXAUggdewwyyD4xl9UHCfI4lSexOK37wNSQYPQcVcOS1bl4NhQ em6pw2AC32NsnQE5PmczFADDIpWhO/+WtkTFeE2HHfAn++y3YDtKQd7xes9UJjQNiGziArST l6Zrx4/nShVLeYRVW76l27gI5a8BZLWwBVRsWniGM50OOJULvSag7kh+cjsrXXpNuA4rfEoB Bxr7pso9e5YghupDc8XftsYd7mlAgOTCAC8uZmfOwU0EW0xUcQEQAMKi97v3DwwPgYVPYIbQ JAvoMgubJllC9RcE0PQsE6nEKSrfOT6Gh5/LHOXLbQI9nzU/xdr6kMfwbYVTnZIY/SwsLrJa gSKm64t11MjC1Vf03/sncx1tgI7nwqMMIAYLsXnQ9X/Up5L/gLO2YDIPxrQ6g4glgRYPT53i r6/hTz3dlpqyPCorpuF+WY7P2ujhlFlXCAaD6btPPM/9LZSmI0xS4aCBLH+pZeCr0UGSMhsX JYN0QRLjfsIDGyqaXVH9gwV2Hgsq6z8fNPQlBc3IpDvfXa1rYtgldYBfG521L3wnsMcKoFSr R5dpH7Jtvv5YBuAk8r571qlMhyAmVKiEnc+RonWl503D5bAHqNmFNjV248J5scyRD/+BcYLI 2CFG28XZrCvjxq3ux5hpmg2fCu+y98h6/yuwB/JhbFlDOSoluEpysiEL3R5GTKbxOF664q5W fiSObxNONxs86UtghqNDRUJgyS0W6TfykGOnZDVYAC9Gg8SbQDta1ymA0q76S/NG2MrJEOIr 1GtOr/UjNv2x4vW56dzX/3yuhK1ilpgzh1q504ETC6EKXMaFT8cNgsMlk9dOvWPwlsIJ249+ PizMDFGITxGTIrQAaUBO+HRLSBYdHNrHJtytkBoTjykCt7M6pl7l+jFYjGSw4fwexVy0MqsD AZ2coH82RTPb6Q7JABEBAAHCwXYEGAEKACAWIQSQjscwjkRszYUsDUsBr7Dkm9vK6wUCW0xU cQIbDAAKCRABr7Dkm9vK6+9uD/9Ld3X5cvnrwrkFMddpjFKoJ4yphtX2s+EQfKT6vMq3A1dJ tI7zHTFm60uBhX6eRbQow8fkHPcjXGJEoCSJf8ktwx/HYcBcnUK/aulHpvHIIYEma7BHry4x L+Ap7oBbBNiraS3Wu1k+MaX07BWhYYkpu7akUEtaYsCceVc4vpYNITUzPYCHeMwc5pLICA+7 VdI1rrTSAwlCtLGBt7ttbvaAKN4dysiN+/66Hlxnn8n952lZdG4ThPPzafG50EgcTa+dASgm tc6HaQAmJiwb4iWUOoUoM+udLRHcN6cE0bQivyH1bqF4ROeFBRz00MUJKvzUynR9E50F9hmd DOBJkyM3Z5imQ0RayEkRHhlhj7uECaojnUeewq4zjpAg2HTSMkdEzKRbdMEyXCdQXFnSCmUB 5yMIULuDbOODWo3EufExLjAKzIRWEKQ/JidLzO6hrhlQffsJ7MPTU+Hg7WxqWfn4zhuUcIQB SlkiRMalSiJITC2jG7oQRRh9tyNaDMkKzTbeFtHKRmUUAuhE0LBXP8Wc+5W7b3WOf2SO8JMR 4TqDZ0K06s66S5fOTW0h56iCCxTsAnRvM/tA4SERyRoFs/iTqJzboskZY0yKeWV4/IQxfOyC YwdU3//zANM1ZpqeE/8lnW/kx+fyzVyEioLSwkjDvdG++4GQ5r6PHQ7BbdEWhA==
- Cc: George Dunlap <George.Dunlap@xxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Julien Grall <julien.grall@xxxxxxx>, "sergey.dyasli@xxxxxxxxxx >> Sergey Dyasli" <sergey.dyasli@xxxxxxxxxx>
- Delivery-date: Wed, 07 Nov 2018 16:36:37 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Openpgp: preference=signencrypt
On 07/11/2018 12:17, Wei Liu wrote:
> On Wed, Nov 07, 2018 at 11:11:49AM +0000, Sergey Dyasli wrote:
>> Scrubbing RAM during boot may take a long time on machines with lots
>> of RAM. Add 'idle' option to bootscrub which marks all pages dirty
>> initially so they will eventually be scrubbed in idle-loop on every
>> online CPU.
>>
>> It's guaranteed that the allocator will return scrubbed pages by doing
>> eager scrubbing during allocation (unless MEMF_no_scrub was provided).
>>
>> Use the new 'idle' option as the default one.
>>
>> Signed-off-by: Sergey Dyasli <sergey.dyasli@xxxxxxxxxx>
>> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
>> ---
>> v2 --> v3:
>> - Removed "= 0" from enum bootscrub_mode
>> - Removed num_online_nodes() from printk()
>> - Added Reviewed-by
>
> I think your patch (v2?) is already committed.
Hmm, you are right: CommitDate: Wed Nov 7 09:34:17 2018 +0100
Sorry, I wasn't expecting that.
Though printk() in the committed version has a typo:
printk("Scrubbing free RAM on in background\n");
^^
--
Thanks,
Sergey
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel
|
