From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from [59.151.112.132] (helo=heian.cn.fujitsu.com) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zp7AK-0002fu-3b for kexec@lists.infradead.org; Thu, 22 Oct 2015 04:07:48 +0000 Message-ID: <562860F2.4020109@cn.fujitsu.com> Date: Thu, 22 Oct 2015 12:07:14 +0800 From: qiaonuohan MIME-Version: 1.0 Subject: Re: [PATCH] makedumpfile: Improve performance for parallel compression with zlib. References: <0910DD04CBD6DE4193FCF86B9C00BE9701DF3679@BPXM01GP.gisp.nec.co.jp> <562853CE.9000208@cn.fujitsu.com> In-Reply-To: <562853CE.9000208@cn.fujitsu.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: =?UTF-8?B?Ilpob3UsIFdlbmppYW4v5ZGo5paHPyI=?= Cc: "kernel@kyup.com >> Nikolay Borisov" , Atsushi Kumagai , "kexec@lists.infradead.org" , HATAYAMA Daisuke SGVsbG8gWmhvdSwKClRoZSBwZXJmb3JtYW5jZSBpbXByb3ZlbWVudCBzaG93cyBncmVhdCBhY2Nv cmRpbmcgdG8geW91ciBkYXRhLiBIb3dldmVyLAp0aGUgZGF0YSBpcyBub3QgdGhhdCBlbm91Z2gg dG8gc2hvdyB0aGUgY2hhbmdlIG9mIGNvbW1vbiB1c2UuCgpTaW5jZSB0aGUgYW1vdW50IG9mIDAv MSBpbiBhIHBhZ2Ugd2lsbCBjYXVzZSB0aGUgdmFyeSBvZiB0aW1lIHVzZWQgZm9yCmNvbXByZXNz aW9uLCBJIHdvdWxkIGxpa2UgeW91IGdldCBtb3JlIGJlbmNobWFyayBvbiBkaWZmZXJlbnQgY29y ZSB3aXRoCmRpZmZlcmVudCBhbW91bnQgb2YgMC8xLgoKT24gMTAvMjIvMjAxNSAxMToxMSBBTSwg Ilpob3UsIFdlbmppYW4v5ZGo5paHPyIgd3JvdGU6Cj4gSGVsbG8gS3VtYWdhaSwKPgo+IEkgdGVz dCBpdCwgYW5kIGl0IHdvcmtzIHdlbGwuIFRoZSBmb2xsb3dpbmcgaXMgdGhlIHJlc3VsdHMuCj4K PiBpbiB2aXJ0dWFsIG1hY2hpbmUobWVtb3J5IDJHKToKPiB3aXRoIGVtcHR5IG1lbW9yeToKPiAg ICAgICAgICAgIHZlcnNpb24gICAgICB8ICBudW0tdGhyZWFkcyAgfCAgdGltZShzZWMpCj4gICAg ICAgICAtLS0tLS0tLS0tLS0tLS0tKy0tLS0tLS0tLS0tLS0tLSstLS0tLS0tLS0tLS0tCj4gICAg ICAgICAgICAgIGRldmVsICAgICAgfCAgICAgICAwICAgICAgIHwgICAgMTIuNzYKPiAgICAgICAg ICAgICAgZGV2ZWwgICAgICB8ICAgICAgIDEgICAgICAgfCAgICAxOS4yOQo+ICAgICAgICAgICAg ICBkZXZlbCAgICAgIHwgICAgICAgMiAgICAgICB8ICAgIDExLjU2Cj4gICAgICAgICAgKyB0aGlz IHBhdGNoICAgfCAgICAgICAwICAgICAgIHwgICAgMTIuODUKPiAgICAgICAgICArIHRoaXMgcGF0 Y2ggICB8ICAgICAgIDEgICAgICAgfCAgICAgNS42MQo+ICAgICAgICAgICsgdGhpcyBwYXRjaCAg IHwgICAgICAgMiAgICAgICB8ICAgICAyLjY4Cj4KPiB3aXRoIGZ1bGwgbWVtb3J5OgoKZnVsbCBt ZW1vcnkgbWVhbnMgbWVtb3J5IGlzIG9jY3VwaWVkIGJ5IDEsIHdpdGhvdXQgMD8KCj4gICAgICAg ICAgICB2ZXJzaW9uICAgICAgfCAgbnVtLXRocmVhZHMgIHwgIHRpbWUoc2VjKQo+ICAgICAgICAg LS0tLS0tLS0tLS0tLS0tLSstLS0tLS0tLS0tLS0tLS0rLS0tLS0tLS0tLS0tLQo+ICAgICAgICAg ICAgICBkZXZlbCAgICAgIHwgICAgICAgMCAgICAgICB8ICAgIDUxLjE4Cj4gICAgICAgICAgICAg IGRldmVsICAgICAgfCAgICAgICAxICAgICAgIHwgICAgNTcuODIKPiAgICAgICAgICAgICAgZGV2 ZWwgICAgICB8ICAgICAgIDIgICAgICAgfCAgICA0MS41NAo+ICAgICAgICAgICsgdGhpcyBwYXRj aCAgIHwgICAgICAgMCAgICAgICB8ICAgIDQ5LjI1Cj4gICAgICAgICAgKyB0aGlzIHBhdGNoICAg fCAgICAgICAxICAgICAgIHwgICAgNDQuODAKPiAgICAgICAgICArIHRoaXMgcGF0Y2ggICB8ICAg ICAgIDIgICAgICAgfCAgICAzMy44Nwo+Cj4KPiBpbiByZWFsIG1hY2hpbmUobWVtb3J5IDE2Ryk6 Cj4gd2l0aCBlbXB0eSBtZW1vcnk6Cj4gICAgICAgICAgICB2ZXJzaW9uICAgICAgfCAgbnVtLXRo cmVhZHMgIHwgIHRpbWUoc2VjKQo+ICAgICAgICAgLS0tLS0tLS0tLS0tLS0tLSstLS0tLS0tLS0t LS0tLS0rLS0tLS0tLS0tLS0tLQo+ICAgICAgICAgICAgICBkZXZlbCAgICAgIHwgICAgICAgMCAg ICAgICB8ICAgIDg2LjEyCj4gICAgICAgICAgICAgIGRldmVsICAgICAgfCAgICAgICAxICAgICAg IHwgICAyMjIuMzcKPiAgICAgICAgICAgICAgZGV2ZWwgICAgICB8ICAgICAgIDggICAgICAgfCAg ICA4MS41MAo+ICAgICAgICAgICAgICBkZXZlbCAgICAgIHwgICAgICAgMTYgICAgICB8ICAgIDk4 LjQ0Cj4gICAgICAgICAgKyB0aGlzIHBhdGNoICAgfCAgICAgICAwICAgICAgIHwgICAgODYuMDcK PiAgICAgICAgICArIHRoaXMgcGF0Y2ggICB8ICAgICAgIDEgICAgICAgfCAgICA4NC4zMwo+ICAg ICAgICAgICsgdGhpcyBwYXRjaCAgIHwgICAgICAgOCAgICAgICB8ICAgIDE0Ljk1Cj4gICAgICAg ICAgKyB0aGlzIHBhdGNoICAgfCAgICAgICAxNiAgICAgIHwgICAgMTMuOTYKPgo+IHdpdGggZnVs bCBtZW1vcnk6Cj4gICAgICAgICAgICB2ZXJzaW9uICAgICAgfCAgbnVtLXRocmVhZHMgIHwgIHRp bWUoc2VjKQo+ICAgICAgICAgLS0tLS0tLS0tLS0tLS0tLSstLS0tLS0tLS0tLS0tLS0rLS0tLS0t LS0tLS0tLQo+ICAgICAgICAgICAgICBkZXZlbCAgICAgIHwgICAgICAgMCAgICAgICB8ICAgNTQw Ljg5Cj4gICAgICAgICAgICAgIGRldmVsICAgICAgfCAgICAgICAxICAgICAgIHwgICA3MTUuMjUK PiAgICAgICAgICAgICAgZGV2ZWwgICAgICB8ICAgICAgIDggICAgICAgfCAgIDEzMi41NAo+ICAg ICAgICAgICAgICBkZXZlbCAgICAgIHwgICAgICAgMTYgICAgICB8ICAgMTEyLjg5Cj4gICAgICAg ICAgKyB0aGlzIHBhdGNoICAgfCAgICAgICAwICAgICAgIHwgICA1NDIuNzkKPiAgICAgICAgICAr IHRoaXMgcGF0Y2ggICB8ICAgICAgIDEgICAgICAgfCAgIDUzOC4yMgo+ICAgICAgICAgICsgdGhp cyBwYXRjaCAgIHwgICAgICAgOCAgICAgICB8ICAgMTA4LjI4Cj4gICAgICAgICAgKyB0aGlzIHBh dGNoICAgfCAgICAgICAxNiAgICAgIHwgICAxMDcuODMKPgoKCi0tIApSZWdhcmRzClFpYW8gTnVv aGFuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwprZXhl YyBtYWlsaW5nIGxpc3QKa2V4ZWNAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5m cmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2tleGVjCg==