From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: Re: [PATCH v3 3/3] xen: optimize xenbus driver for multiple concurrent xenstore accesses Date: Mon, 23 Jan 2017 13:59:34 -0500 Message-ID: <46b54be4-297a-af8f-aac2-f2a080752034__15653.9066964344$1485198047$gmane$org@oracle.com> References: <20170123100918.13523-1-jgross@suse.com> <20170123100918.13523-4-jgross@suse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cVjq1-0002K9-JV for xen-devel@lists.xenproject.org; Mon, 23 Jan 2017 18:59:33 +0000 In-Reply-To: <20170123100918.13523-4-jgross@suse.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Juergen Gross , linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org T24gMDEvMjMvMjAxNyAwNTowOSBBTSwgSnVlcmdlbiBHcm9zcyB3cm90ZToKPiBIYW5kbGluZyBv ZiBtdWx0aXBsZSBjb25jdXJyZW50IFhlbnN0b3JlIGFjY2Vzc2VzIHRocm91Z2ggeGVuYnVzIGRy aXZlcgo+IGVpdGhlciBmcm9tIHRoZSBrZXJuZWwgb3IgdXNlciBsYW5kIGlzIHJhdGhlciBsYW1l IHRvZGF5OiB4ZW5idXMgaXMKPiBjYXBhYmxlIHRvIGhhdmUgb25lIGFjY2VzcyBhY3RpdmUgb25s eSBhdCBvbmUgcG9pbnQgb2YgdGltZS4KPgo+IFJld3JpdGUgeGVuYnVzIHRvIGhhbmRsZSBtdWx0 aXBsZSByZXF1ZXN0cyBjb25jdXJyZW50bHkgYnkgbWFraW5nIHVzZQo+IG9mIHRoZSByZXF1ZXN0 IGlkIG9mIHRoZSBYZW5zdG9yZSBwcm90b2NvbC4gVGhpcyByZXF1aXJlcyB0bzoKPgo+IC0gSW5z dGVhZCBvZiBibG9ja2luZyBpbnNpZGUgeGJfcmVhZCgpIHdoZW4gdHJ5aW5nIHRvIHJlYWQgZGF0 YSBmcm9tCj4gICB0aGUgeGVuc3RvcmUgcmluZyBidWZmZXIgZG8gc28gb25seSBpbiB0aGUgbWFp biBsb29wIG9mCj4gICB4ZW5idXNfdGhyZWFkKCkuCj4KPiAtIEluc3RlYWQgb2YgZG9pbmcgd3Jp dGVzIHRvIHRoZSB4ZW5zdG9yZSByaW5nIGJ1ZmZlciBpbiB0aGUgY29udGV4dCBvZgo+ICAgdGhl IGNhbGxlciBqdXN0IHF1ZXVlIHRoZSByZXF1ZXN0IGFuZCBkbyB0aGUgd3JpdGUgaW4gdGhlIGRl ZGljYXRlZAo+ICAgeGVuYnVzIHRocmVhZC4KPgo+IC0gSW5zdGVhZCBvZiBqdXN0IGZvcndhcmRp bmcgdGhlIHJlcXVlc3QgaWQgc3BlY2lmaWVkIGJ5IHRoZSBjYWxsZXIgb2YKPiAgIHhlbmJ1cyB0 byB4ZW5zdG9yZSB1c2UgYSB4ZW5idXMgaW50ZXJuYWwgdW5pcXVlIHJlcXVlc3QgaWQuIFRoaXMg d2lsbAo+ICAgYWxsb3cgbXVsdGlwbGUgb3V0c3RhbmRpbmcgcmVxdWVzdHMuCj4KPiAtIE1vZGlm eSB0aGUgbG9ja2luZyBzY2hlbWUgaW4gb3JkZXIgdG8gYWxsb3cgbXVsdGlwbGUgcmVxdWVzdHMg YmVpbmcKPiAgIGFjdGl2ZSBpbiBwYXJhbGxlbC4KPgo+IC0gSW5zdGVhZCBvZiB3YWl0aW5nIGZv ciB0aGUgcmVwbHkgb2YgYSB1c2VyJ3MgeGVuc3RvcmUgcmVxdWVzdCBhZnRlcgo+ICAgd3JpdGlu ZyB0aGUgcmVxdWVzdCB0byB0aGUgeGVuc3RvcmUgcmluZyBidWZmZXIgcmV0dXJuIGRpcmVjdGx5 IHRvCj4gICB0aGUgY2FsbGVyIGFuZCBkbyB0aGUgd2FpdGluZyBpbiB0aGUgcmVhZCBwYXRoLgo+ Cj4gQWRkaXRpb25hbGx5IHNpZ25hbCBoYW5kbGluZyB3YXMgb3B0aW1pemVkIGJ5IGF2b2lkaW5n IHdha2luZyB1cCB0aGUKPiB4ZW5idXMgdGhyZWFkIG9yIHNlbmRpbmcgYW4gZXZlbnQgdG8gWGVu c3RvcmUgaW4gY2FzZSB0aGUgYWRkcmVzc2VkCj4gZW50aXR5IGlzIGtub3duIHRvIGJlIHJ1bm5p bmcgYWxyZWFkeS4KPgo+IEFzIGEgcmVzdWx0IGNvbW11bmljYXRpb24gd2l0aCBYZW5zdG9yZSBp cyBzcGVkIHVwIGJ5IGEgZmFjdG9yIG9mIHVwCj4gdG8gNTogZGVwZW5kaW5nIG9uIHRoZSByZXF1 ZXN0IHR5cGUgKHJlYWQgb3Igd3JpdGUpIGFuZCB0aGUgYW1vdW50IG9mCj4gZGF0YSB0cmFuc2Zl cnJlZCB0aGUgZ2FpbiB3YXMgYXQgbGVhc3QgMjAlIChzbWFsbCByZWFkcykgYW5kIHdlbnQgdXAg dG8KPiBhIGZhY3RvciBvZiA1IGZvciBsYXJnZSB3cml0ZXMuCj4KPiBJbiB0aGUgZW5kIHNvbWUg bW9yZSByb3VnaCBlZGdlcyBvZiB4ZW5idXMgaGF2ZSBiZWVuIHNtb290aGVkOgo+Cj4gLSBIYW5k bGluZyBvZiBtZW1vcnkgc2hvcnRhZ2Ugd2hlbiByZWFkaW5nIGZyb20geGVuc3RvcmUgcmluZyBi dWZmZXIgaW4KPiAgIHRoZSB4ZW5idXMgZHJpdmVyIHdhcyBub3Qgb3B0aW1hbDogaXQgd2FzIGJ1 c3kgbG9vcGluZyBhbmQgaXNzdWluZyBhCj4gICB3YXJuaW5nIGluIGVhY2ggbG9vcC4KPgo+IC0g SW4gY2FzZSBvZiB4ZW5zdG9yZSBub3QgcnVubmluZyBpbiBkb20wIGJ1dCBpbiBhIHN0dWJkb20g d2UgZW5kIHVwCj4gICB3aXRoIHR3byB4ZW5idXMgdGhyZWFkcyBydW5uaW5nIGFzIHRoZSBpbml0 aWFsaXphdGlvbiBvZiB4ZW5idXMgaW4KPiAgIGRvbTAgZXhwZWN0aW5nIGEgbG9jYWwgeGVuc3Rv cmVkIHdpbGwgYmUgcmVkb25lIGxhdGVyIHdoZW4gY29ubmVjdGluZwo+ICAgdG8gdGhlIHhlbnN0 b3JlIGRvbWFpbi4gVXAgdG8gbm93IHRoaXMgd2FzIG5vIHByb2JsZW0gYXMgbG9ja2luZwo+ICAg d291bGQgcHJldmVudCB0aGUgdHdvIHhlbmJ1cyB0aHJlYWRzIGludGVyZmVyaW5nIHdpdGggZWFj aCBvdGhlciwgYnV0Cj4gICB0aGlzIHdhcyBqdXN0IGEgd2FzdGUgb2Yga2VybmVsIHJlc291cmNl cy4KPgo+IC0gQW4gb3V0IG9mIG1lbW9yeSBzaXR1YXRpb24gd2hpbGUgd3JpdGluZyB0byBvciBy ZWFkaW5nIGZyb20gdGhlCj4gICB4ZW5zdG9yZSByaW5nIGJ1ZmZlciBubyBsb25nZXIgd2lsbCBs ZWFkIHRvIGEgcG9zc2libGUgbG9zcyBvZgo+ICAgc3luY2hyb25pemF0aW9uIHdpdGggeGVuc3Rv cmUuCj4KPiAtIFRoZSB1c2VyIHJlYWQgYW5kIHdyaXRlIHBhcnQgYXJlIG5vdyBpbnRlcnJ1cHRp YmxlIGJ5IHNpZ25hbHMuCj4KPiBTaWduZWQtb2ZmLWJ5OiBKdWVyZ2VuIEdyb3NzIDxqZ3Jvc3NA c3VzZS5jb20+CgpSZXZpZXdlZC1ieTogQm9yaXMgT3N0cm92c2t5IDxib3Jpcy5vc3Ryb3Zza3lA b3JhY2xlLmNvbT4KCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHBz Oi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK