From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dongmao Zhang Subject: Re: [PATCH 0/2] patches to improve cluster raid1 performance [V2] Date: Fri, 27 Sep 2013 15:59:11 +0800 Message-ID: <52453ACF.7050803@suse.com> References: <5CE90943-3783-472B-BCCD-BF1F392599C3@redhat.com> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <5CE90943-3783-472B-BCCD-BF1F392599C3@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: Brassow Jonathan Cc: dm-devel@redhat.com, agk@redhat.com List-Id: dm-devel.ids Z3JlYXQsIHRoYW5rcyBmb3IgeW91ciByZXNwb25zZTopCgoK5LqOIDIwMTPlubQwOeaciDI35pel IDAxOjE3LCBCcmFzc293IEpvbmF0aGFuIOWGmemBkzoKPiBJJ2xsIHRyeSB0byBsb29rIHRoZXNl IHBhdGNoZXMgb3ZlciBkdXJpbmcgdGhlIG5leHQgY291cGxlIGRheXMuICBUaGFua3MgZm9yIHNl bmRpbmcuCj4KPiBPbmUgdGhpbmcgSSdsbCBiZSBsb29raW5nIGZvciBpcyB0aGF0IGFueSBkZWxh eXMgaW4gdGhlIGZsdXNoIGRvbid0IHZpb2xhdGUgdGhlIG5lZWQgZm9yIGRtLXJhaWQxLmMgdG8g ZW5zdXJlIHRoYXQgdGhlIGxvZyBjaGFuZ2VzIGhhdmUgaGl0IHRoZSBkaXNrIGJlZm9yZSBwZXJm b3JtaW5nIGFueSB3cml0ZXMuCj4KPiAgIGJyYXNzb3cKPgo+IE9uIFNlcCAyNiwgMjAxMywgYXQg NTo1MCBBTSwgZG9uZ21hbyB6aGFuZyB3cm90ZToKPgo+PiBUaGlzIHBhdGNoIGNoYW5nZSBETV9V TE9HX1JFUVVFU1RfVkVSU0lPTiBmcm9tIDIgdG8gMy4gSXQgY291bGQKPj4gdGVsbCBjbWlycm9y ZCB0aGF0IGtlcm5lbCBpcyBub3cgc3VwcG9ydGluZyBkZWxheSBzb21lIGZsdXNoZXMsIGFuZAo+ PiBjbWlycm9yZCB3aWxsIGRvIHNvbWV0aW5nIGFjY29yZGluZ2x5Lgo+Pgo+Pgo+PiBCYXNlZCBv biBteSB0ZXN0IHJlc3VsdCwgdGhlIGNsdXN0ZXIgcmFpZDEgd3JpdGVzIGxvc3MgODAlIHBlcmZv cm1hbmNlLiBJIGZvdW5kCj4+IHRoYXQgdGhlIG1vc3QgdGltZSBpcyBvY2N1cGllZCBieSB0aGUg ZnVuY3Rpb24gdXNlcnNwYWNlX2ZsdXNoLgo+Pgo+PiBVc3VhbGx5IHVzZXJzcGFjZV9mbHVzaCBu ZWVkcyB0aHJlZSBzdGFnZXMobWFyaywgY2xlYXIsIGZsdXNoKXRvIGNvbW11bmljYXRlIHdpdGgg Y21pcnJvcmQuCj4+Cj4+PiAgRnJvbSB0aGUgY21pcnJvcmQncyBwZXJzcGVjdGl2ZSwgbWFyayBh bmQgZmx1c2ggZnVuY3Rpb25zIHJ1biBjbHVzdGVyX3NlbmQgZmlyc3QgYW5kIHRoZW4gcmV0dXJu IHRvCj4+IHRoZSBrZXJuZWwuCj4+Cj4+IEluIG90aGVyIHdvcmRzLCB0aGUgcmVxdWVzdHMgb2Yg bWFya19yZWdpb24gYW5kIGZsdXNoIGluIHVzZXJzcGFjZV9mbHVzaAo+PiBhdCBsZWFzdCByZXF1 aXJlIGEgY2x1c3Rlcl9zZW5kIHBlcmlvZCB0byBmaW5pc2guIHRoaXMgaXMgdGhlIHJvb3QgY2F1 c2UKPj4gb2YgYmFkIHBlcmZvcm1hbmNlLgo+Pgo+PiBUaGUgaWRlYSBpcyB0byBtZXJnZSBmbHVz aCBhbmQgbWFyayByZXF1ZXN0IHRvZ2V0aGVyIGluIGJvdGggY21pcnJvcmQgYW5kIGRtLWxvZy11 c2Vyc3BhY2UuCj4+Cj4+IFdlIHJ1biBjbG9nX2ZsdXNoIGRpcmVjdGx5IGFmdGVyIGNsb2dfbWFy a19yZWdpb24uIFNvIHRoZSB1c2Vyc3BhY2VfZmx1c2ggZG8gbm90Cj4+IGhhdmUgdG8gcmVxdWVz dCBmbHVzaCBhZ2FpbiBhZnRlciByZXF1ZXN0aW5nIG1hcmtfcmVnaW9uLiAgTW9yZW92ZXIsIEkg dGhpbmsgdGhlIGZsdXNoCj4+IG9mIGNsZWFyIHJlZ2lvbiBjb3VsZCBiZSBkZWxheWVkLiBJZiB3 ZSBoYXZlIGJvdGggbWFyayBhbmQgY2xlYXIgcmVnaW9uLCBvbmx5IHNlbmRpbmcKPj4gYSBtYXJr X3JlZ2lvbiByZXF1ZXN0IGlzIE9LLCBiZWNhdXNlIGNsb2dfZmx1c2ggd2lsbCBhdXRvbWF0aWNh bGx5IHJ1bi4oaWdub3JlIHRoZSBjbGVhbl9yZWdpb24KPj4gdGltZSkuIEl0IG9ubHkgdGFrZXMg b25lIGNsdXN0ZXJfc2VuZCBwZXJpb2QuIElmIHdlIGhhdmUgb25seSBtYXJrIHJlZ2lvbiwKPj4g YSBtYXJrX3JlZ2lvbiByZXF1ZXN0IGlzIGFsc28gT0ssIGl0IHRha2VzIG9uZSBjbHVzdGVyX3Nl bmQgcGVyaW9kLiBJZiB3ZSBoYXZlIG9ubHkKPj4gY2xlYXJfcmVnaW9uLCB3ZSBjb3VsZCBkZWxh eSB0aGUgZmx1c2ggb2YgY2xlYXJlZF9yZWdpb24gZm9yIDMgc2Vjb25kcy4KPj4KPj4gT3ZlcmFs bCwgYmVmb3JlIHRoZSBwYXRjaCwgbWFya19yZWdpb24gcmVxdWlyZSBhcHByb3hpbWF0ZWx5IHR3 byBjbHVzdGVyX3NlbmQKPj4gcGVyaW9kKG1hcmtfcmVnaW9uIGFuZCBmbHVzaCksIGFmdGVyIHRo ZSBwYXRjaCwgbWFya19yZWdpb24gb25seSBuZWVkcyBvbmUKPj4gY2x1c3Rlcl9zZW5kIHBlcmlv ZC4gQmFzZWQgb24gbXkgdGVzdCwgdGhlIHBlcmZvcm1hbmNlIGlzIGFzIHR3aWNlIGFzIGJlZm9y ZS4KPj4KPj4KPj4KPj4gZG9uZ21hbyB6aGFuZyAoMik6Cj4+ICAgaW1wcm92ZSB0aGUgcGVyZm9y bWFuY2Ugb2YgZG0tbG9nLXVzZXJzcGFjZQo+PiAgIGNoYW5nZSBBUEkgb2YgZG0tbG9nLXVzZXJz cGFjZSB0byBzdXBwb3J0IGRlbGF5IGZsdXNoCj4+Cj4+IGRyaXZlcnMvbWQvZG0tbG9nLXVzZXJz cGFjZS1iYXNlLmMgICAgfCAgMTA5ICsrKysrKysrKysrKysrKysrKysrKysrKysrKysrKy0tLQo+ PiBpbmNsdWRlL3VhcGkvbGludXgvZG0tbG9nLXVzZXJzcGFjZS5oIHwgICAgMiArLQo+PiAyIGZp bGVzIGNoYW5nZWQsIDEwMSBpbnNlcnRpb25zKCspLCAxMCBkZWxldGlvbnMoLSkKPj4KPj4gLS0K Pj4gMS43LjMuNAo+Pgo+PiAtLQo+PiBkbS1kZXZlbCBtYWlsaW5nIGxpc3QKPj4gZG0tZGV2ZWxA cmVkaGF0LmNvbQo+PiBodHRwczovL3d3dy5yZWRoYXQuY29tL21haWxtYW4vbGlzdGluZm8vZG0t ZGV2ZWwKPgo+CgotLQpkbS1kZXZlbCBtYWlsaW5nIGxpc3QKZG0tZGV2ZWxAcmVkaGF0LmNvbQpo dHRwczovL3d3dy5yZWRoYXQuY29tL21haWxtYW4vbGlzdGluZm8vZG0tZGV2ZWw=