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 1acr6r-0000lV-FP for kexec@lists.infradead.org; Mon, 07 Mar 2016 09:05:50 +0000 Message-ID: <56DD43F7.8060703@cn.fujitsu.com> Date: Mon, 7 Mar 2016 17:03:51 +0800 From: =?UTF-8?B?Ilpob3UsIFdlbmppYW4v5ZGo5paH5YmRIg==?= MIME-Version: 1.0 Subject: Re: [PATCH v3] Improve the performance of --num-threads -d 31 References: <1457080544-16469-1-git-send-email-zhouwj-fnst@cn.fujitsu.com> <20160307070458.GA6016@dhcp-128-25.nay.redhat.com> <56DD3A3E.1000402@cn.fujitsu.com> <56DD3F27.4030105@cn.fujitsu.com> In-Reply-To: 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: Minoru Usui Cc: Minfei Huang , "kexec@lists.infradead.org" SGkgTWlub3J1LAoKSSBndWVzcyBpZiB5b3UgY2hhbmdlIHRoZSBwYXJ0IG9mIGxvY2tpbmcgcGFn ZV9kYXRhX2J1ZiB0byB0aGUgZm9sbG93aW5nLAppdCB3aWxsIGJlIG1vcmUgY29ycmVjdC4KQnV0 IEknbSBub3Qgc3VyZSBpZiB5b3Ugd2lsbCBnZXQgdGhlIHNhbWUgcHJvYmxlbSBhcyB3aGljaCBp biBteSBwYXRjaCB2My4KCisJCXB0aHJlYWRfbXV0ZXhfbG9jaygmaW5mby0+cGFnZV9kYXRhX211 dGV4KTsKKwkJd2hpbGUgKHBhZ2VfZGF0YV9idWZbaW5kZXhdLnVzZWQgIT0gRkFMU0UpIHsKKwkJ CWluZGV4ID0gKGluZGV4ICsgMSkgJSBpbmZvLT5udW1fYnVmZmVyczsKKwkJfQorCQlwYWdlX2Rh dGFfYnVmW2luZGV4XS51c2VkID0gVFJVRTsKKwkJcHRocmVhZF9tdXRleF91bmxvY2soJmluZm8t PnBhZ2VfZGF0YV9tdXRleCk7CgotLSAKVGhhbmtzClpob3UKCk9uIDAzLzA3LzIwMTYgMDQ6NTIg UE0sIE1pbm9ydSBVc3VpIHdyb3RlOgo+IEhpLCBaaG91Cj4KPj4gLS0tLS1PcmlnaW5hbCBNZXNz YWdlLS0tLS0KPj4gRnJvbToga2V4ZWMgW21haWx0bzprZXhlYy1ib3VuY2VzQGxpc3RzLmluZnJh ZGVhZC5vcmddIE9uIEJlaGFsZiBPZiAiWmhvdSwgV2Vuamlhbi/lkajmloc/Igo+PiBTZW50OiBN b25kYXksIE1hcmNoIDA3LCAyMDE2IDU6NDMgUE0KPj4gVG86IFVzdWkgTWlub3J1KOeik+S6lSDm iJApIDxtaW4tdXN1aUB0aS5qcC5uZWMuY29tPgo+PiBDYzogTWluZmVpIEh1YW5nIDxtaHVhbmdA cmVkaGF0LmNvbT47IGtleGVjQGxpc3RzLmluZnJhZGVhZC5vcmcKPj4gU3ViamVjdDogUmU6IFtQ QVRDSCB2M10gSW1wcm92ZSB0aGUgcGVyZm9ybWFuY2Ugb2YgLS1udW0tdGhyZWFkcyAtZCAzMQo+ Pgo+PiBIaSBNaW5vcnUsCj4+Cj4+IEkgZ290IHR3byBlcnJvciBkdW1wZmlsZXMgYnkgcnVubmlu ZyBpdCBsZXNzIHRoYW4gMTAwIHRpbWVzLgo+Cj4gT2gsIEknbSBzb3JyeS4KPiBUaGFuayB5b3Ug Zm9yIHlvdXIgdGVzdC4KPgo+IEknbSB3YWl0aW5nIGZvciB5b3VyIHY0IHBhdGNoLgo+Cj4gVGhh bmtzCj4gTWlub3J1IFVzdWkKPgo+Cj4KPj4gLS0KPj4gVGhhbmtzCj4+IFpob3UKPj4KPj4gT24g MDMvMDcvMjAxNiAwNDoyMiBQTSwgIlpob3UsIFdlbmppYW4v5ZGo5paHPyIgd3JvdGU6Cj4+PiBI aSBNaW5vcnUsCj4+Pgo+Pj4gSSBoYXZlIHRlc3QgeW91ciBwYXRjaCBzaW5jZSB5b3UgcG9zdC4K Pj4+IEkgY2FuIGdldCBhIGZhaWx1cmUgZWFzaWx5Lgo+Pj4gSWYgeW91IHJ1biBpdCBzZXZlcmFs IHRpbWVzLCB0aGUgZHVtcGZpbGUgaXQgcHJvZHVjZXMgbWF5IGJlIGRpZmZlcmVudCBmcm9tIHRo ZSBjb3JyZWN0IG9uZS4KPj4+Cj4+PiArCQkJaW5mby0+Y3VycmVudF9wZm4gPSBwZm4gKyAxOwo+ Pj4gKwkJCXB0aHJlYWRfbXV0ZXhfdW5sb2NrKCZpbmZvLT5jdXJyZW50X3Bmbl9tdXRleCk7Cj4+ PiArCQkJcGFnZV9mbGFnX2J1Zi0+cGZuID0gcGZuOwo+Pj4gKwkJCXBhZ2VfZmxhZ19idWYtPnJl YWR5ID0gRkxBR19GSUxMSU5HOwo+Pj4gVGhlIGFib3ZlIGNvZGUgc2hvdWxkIGJlIGNoYW5nZWQg dG8gdGhlIGZvbGxvd2luZzoKPj4+Cj4+PiArCQkJaW5mby0+Y3VycmVudF9wZm4gPSBwZm4gKyAx Owo+Pj4gKwkJCXBhZ2VfZmxhZ19idWYtPnBmbiA9IHBmbjsKPj4+ICsJCQlwYWdlX2ZsYWdfYnVm LT5yZWFkeSA9IEZMQUdfRklMTElORzsKPj4+ICsJCQlwdGhyZWFkX211dGV4X3VubG9jaygmaW5m by0+Y3VycmVudF9wZm5fbXV0ZXgpOwo+Pj4KPj4+IEkgaGF2ZW4ndCBydW4geW91ciBjb2RlIHdp dGggdGhlIGJ1ZyBmaXhlZC4KPj4+IEknbGwgdHJ5IG5vdy4KPj4+Cj4+PiBCeSB0aGUgd2F5LCB3 aXRoIG15IHBhdGNoIHYzLCBJIGNhbid0IGdldCBhbiBlcnJvciBkdW1wZmlsZSB1bnRpbCBydW4g aXQgYnkgNTAwMCB0aW1lcy4KPj4KPj4KPj4KPj4gX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KPj4ga2V4ZWMgbWFpbGluZyBsaXN0Cj4+IGtleGVjQGxpc3Rz LmluZnJhZGVhZC5vcmcKPj4gaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0 aW5mby9rZXhlYwoKCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18Ka2V4ZWMgbWFpbGluZyBsaXN0CmtleGVjQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDov L2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9rZXhlYwo=