From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758256AbcBXWSA (ORCPT ); Wed, 24 Feb 2016 17:18:00 -0500 Received: from mx1.redhat.com ([209.132.183.28]:59583 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756832AbcBXWR7 (ORCPT ); Wed, 24 Feb 2016 17:17:59 -0500 Message-ID: <1456352276.25322.7.camel@redhat.com> Subject: Re: [PATCH] mm: limit direct reclaim for higher order allocations From: Rik van Riel To: David Rientjes Cc: linux-kernel@vger.kernel.org, hannes@cmpxchg.org, akpm@linux-foundation.org, vbabka@suse.cz, mgorman@suse.de Date: Wed, 24 Feb 2016 17:17:56 -0500 In-Reply-To: References: <20160224163850.3d7eb56c@annuminas.surriel.com> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-ahq+1ZGC3NHaS/lFFHZ/" Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-ahq+1ZGC3NHaS/lFFHZ/ Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 T24gV2VkLCAyMDE2LTAyLTI0IGF0IDE0OjE1IC0wODAwLCBEYXZpZCBSaWVudGplcyB3cm90ZToK PiBPbiBXZWQsIDI0IEZlYiAyMDE2LCBSaWsgdmFuIFJpZWwgd3JvdGU6Cj4gCj4gPiBGb3IgbXVs dGkgcGFnZSBhbGxvY2F0aW9ucyBzbWFsbGVyIHRoYW4gUEFHRV9BTExPQ19DT1NUTFlfT1JERVIs Cj4gPiB0aGUga2VybmVsIHdpbGwgZG8gZGlyZWN0IHJlY2xhaW0gaWYgY29tcGFjdGlvbiBmYWls ZWQgZm9yIGFueQo+ID4gcmVhc29uLiBUaGlzIHdvcmtlZCBmaW5lIHdoZW4gTGludXggc3lzdGVt cyBoYWQgMTI4TUIgUkFNLCBidXQKPiA+IG9uIG15IDI0R0Igc3lzdGVtIEkgZnJlcXVlbnRseSBz ZWUgaGlnaGVyIG9yZGVyIGFsbG9jYXRpb25zCj4gPiBmcmVlIHVwIG92ZXIgM0dCIG9mIG1lbW9y eSwgcHVzaGluZyBhbGwga2luZHMgb2YgdGhpbmdzIGludG8KPiA+IHN3YXAsIGFuZCBzbG93aW5n IGRvd24gYXBwbGljYXRpb25zLgo+ID7CoAo+IAo+IEp1c3QgY3VyaW91cywgYXJlIHRoZXNlIGhp Z2hlciBvcmRlciBhbGxvY2F0aW9ucyB0eXBpY2FsbHkgZG9uZSBieQo+IHRoZcKgCj4gc2x1YiBh bGxvY2F0b3Igb3Igd2hlcmUgYXJlIHRoZXkgY29taW5nIGZyb20/CgpUaGVzZSBhcmUgc2xhYiBh bGxvY2F0b3Igb25lcywgaW5kZWVkLgoKVGhlIGFsbG9jYXRpb25zIHNlZW0gdG8gYmUgb3JkZXIg MiBhbmQgMywgbW9zdGx5Cm9uIGJlaGFsZiBvZiB0aGUgaW5vZGUgY2FjaGUgYW5kIGFsbG9jX3Nr Yi4KCj4gPiBJdCB3b3VsZCBiZSBtdWNoIGJldHRlciB0byBsaW1pdCB0aGUgYW1vdW50IG9mIHJl Y2xhaW0gZG9uZSwKPiA+IHJhdGhlciB0aGFuIGNhdXNlIGV4Y2Vzc2l2ZSBwYWdlb3V0IGFjdGl2 aXR5Lgo+ID7CoAo+ID4gV2hlbiBlbm91Z2ggbWVtb3J5IGlzIGZyZWUgdG8gZG8gY29tcGFjdGlv biBmb3IgdGhlIGhpZ2hlc3Qgb3JkZXIKPiA+IGFsbG9jYXRpb24gcG9zc2libGUsIGJhaWwgb3V0 IG9mIHRoZSBkaXJlY3QgcGFnZSByZWNsYWltIGNvZGUuCj4gPsKgCj4gPiBPbiBzbWFsbGVyIHN5 c3RlbXMsIHRoaXMgbWF5IGJlIGVub3VnaCB0byBvYnRhaW4gY29udGlndW91cwo+ID4gZnJlZSBt ZW1vcnkgYXJlYXMgdG8gc2F0aXNmeSBzbWFsbCBhbGxvY2F0aW9ucywgY29udGludWluZyBvdXIK PiA+IHN0cmF0ZWd5IG9mIHJlbHlpbmcgb24gbHVjayBvY2Nhc2lvbmFsbHkuIE9uIGxhcmdlciBz eXN0ZW1zLAo+ID4gcmVseWluZyBvbiBsdWNrIGxpa2UgdGhhdCBoYXMgbm90IGJlZW4gd29ya2lu ZyBmb3IgeWVhcnMuCj4gPsKgCj4gPiBTaWduZWQtb2ZmLWJ5OiBSaWsgdmFuIFJpZWwgPHJpZWxA cmVkaGF0LmNvbT4KPiA+IC0tLQo+ID7CoCBtbS92bXNjYW4uYyB8IDE5ICsrKysrKysrLS0tLS0t LS0tLS0KPiA+wqAgMSBmaWxlIGNoYW5nZWQsIDggaW5zZXJ0aW9ucygrKSwgMTEgZGVsZXRpb25z KC0pCj4gPsKgCj4gPiBkaWZmIC0tZ2l0IGEvbW0vdm1zY2FuLmMgYi9tbS92bXNjYW4uYwo+ID4g aW5kZXggZmM2MjU0NjA5NmY5Li44ZGQxNWQ1MTQ3NjEgMTAwNjQ0Cj4gPiAtLS0gYS9tbS92bXNj YW4uYwo+ID4gKysrIGIvbW0vdm1zY2FuLmMKPiA+IEBAIC0yNTg0LDIwICsyNTg0LDE3IEBAIHN0 YXRpYyBib29sIHNocmlua196b25lcyhzdHJ1Y3Qgem9uZWxpc3QKPiAqem9uZWxpc3QsIHN0cnVj dCBzY2FuX2NvbnRyb2wgKnNjKQo+ID7CoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoGNvbnRpbnVlO8KgwqDCoMKgwqDCoMKgLyogTGV0 IGtzd2FwZCBwb2xsIGl0Cj4gKi8KPiA+wqDCoAo+ID7CoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgLyoKPiA+IC3CoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqAgKiBJZiB3ZSBhbHJlYWR5IGhhdmUgcGxlbnR5IG9mIG1lbW9yeSBmcmVl Cj4gZm9yCj4gPiAtwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgICog Y29tcGFjdGlvbiBpbiB0aGlzIHpvbmUsIGRvbid0IGZyZWUgYW55Cj4gbW9yZS4KPiA+IC3CoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgKiBFdmVuIHRob3VnaCBjb21w YWN0aW9uIGlzIGludm9rZWQgZm9yIGFueQo+ID4gLcKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoCAqIG5vbi16ZXJvIG9yZGVyLCBvbmx5IGZyZXF1ZW50IGNvc3RseSBv cmRlcgo+ID4gLcKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCAqIHJl Y2xhbWF0aW9uIGlzIGRpc3J1cHRpdmUgZW5vdWdoIHRvIGJlY29tZQo+IGEKPiA+IC3CoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgKiBub3RpY2VhYmxlIHByb2JsZW0s IGxpa2UgdHJhbnNwYXJlbnQgaHVnZQo+ID4gLcKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoCAqIHBhZ2UgYWxsb2NhdGlvbnMuCj4gPiArwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgICogRm9yIGhpZ2hlciBvcmRlciBhbGxvY2F0aW9ucywg ZnJlZSBlbm91Z2gKPiBtZW1vcnkKPiA+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqAgKiB0byBiZSBhYmxlIHRvIGRvIGNvbXBhY3Rpb24gZm9yIHRoZQo+IGxhcmdl c3QgcG9zc2libGUKPiA+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqAgKiBhbGxvY2F0aW9uLiBPbiBzbWFsbGVyIHN5c3RlbXMsIHRoaXMgbWF5Cj4gYmUgZW5vdWdo Cj4gPiArwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgICogdGhhdCBz bWFsbGVyIGFsbG9jYXRpb25zIGNhbiBza2lwCj4gY29tcGFjdGlvbiwgaWYKPiA+ICvCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgKiBlbm91Z2ggYWRqYWNlbnQgcGFn ZXMgZ2V0IGZyZWVkLgo+ID7CoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgICovCj4gPiAtwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg aWYgKElTX0VOQUJMRUQoQ09ORklHX0NPTVBBQ1RJT04pICYmCj4gPiAtwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIHNjLT5vcmRlciA+IFBBR0VfQUxMT0Nf Q09TVExZX09SREVSICYmCj4gPiArwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgaWYgKElTX0VOQUJMRUQoQ09ORklHX0NPTVBBQ1RJT04pICYmIHNjLQo+ID5vcmRlciAm Jgo+ID7CoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg IHpvbmVsaXN0X3pvbmVfaWR4KHopIDw9IHJlcXVlc3RlZF9oaWdoaWR4Cj4gJiYKPiA+IC3CoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgY29tcGFjdGlvbl9y ZWFkeSh6b25lLCBzYy0+b3JkZXIpKSB7Cj4gPiArwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgIGNvbXBhY3Rpb25fcmVhZHkoem9uZSwgTUFYX09SREVSKSkg ewo+ID7CoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoHNjLT5jb21wYWN0aW9uX3JlYWR5ID0gdHJ1ZTsKPiA+IC3CoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgY29udGludWU7Cj4g PiArwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoHJldHVybiB0cnVlOwo+ID7CoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgfQo+ID7CoMKgCj4gPsKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqAvKgo+ID7CoAotLSAKQWxsIFJpZ2h0cyBSZXZlcnNlZC4KCg== --=-ahq+1ZGC3NHaS/lFFHZ/ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJWziwUAAoJEM553pKExN6DNvoH/j1P1W7g/afN8urEMMQ/mMFY IzFOTDe04dHOblCxmRdMruCLbD1KGvXaJySx0qaaCOAiOR+XAFm78vQL1olxYm+j HNC/mEWVNvW6isJZ1vKPjyrBLuWsCvdIoWwOyoaEa0yOzNua/aE0CUW/wc70OgcB moXkU2kJJyxhhAtuFRdz4PgSJlsBJmGWFQUr/8w2p4B6FalSIEGH1zzTdQVOyRJq BbM1za6+C9amDRA5M3E6gK+P52wZuxrOv01N0t4ZkW6L1nnb8IuoBScm1ICo9IZv 1ngD8rW03NZjbz9AjZIx+ZhWCP2vcz324QyFzlPDK1Fxr42qvbrrzdulVvKL/dA= =0fib -----END PGP SIGNATURE----- --=-ahq+1ZGC3NHaS/lFFHZ/--