From mboxrd@z Thu Jan 1 00:00:00 1970 From: Elena Ufimtseva Subject: Re: [Question] PARSEC benchmark has smaller execution time in VM than in native? Date: Tue, 1 Mar 2016 13:20:17 -0500 Message-ID: <20160301182017.GA9344@elena.ufimtseva> References: <20160229160603.GD28725@char.us.oracle.com> <20160229175924.GA26032@char.us.oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Meng Xu Cc: "xen-devel@lists.xen.org" , Hyon-Young Choi List-Id: xen-devel@lists.xenproject.org T24gVHVlLCBNYXIgMDEsIDIwMTYgYXQgMDg6NDg6MzBBTSAtMDUwMCwgTWVuZyBYdSB3cm90ZToK PiBPbiBNb24sIEZlYiAyOSwgMjAxNiBhdCAxMjo1OSBQTSwgS29ucmFkIFJ6ZXN6dXRlayBXaWxr Cj4gPGtvbnJhZC53aWxrQG9yYWNsZS5jb20+IHdyb3RlOgo+ID4+ID4gSGV5IQo+ID4+ID4KPiA+ PiA+IENDLWluZyBFbGVuYS4KPiA+Pgo+ID4+IEkgdGhpbmsgeW91IGZvcmdvdCB5b3UgY2MuZWQg aGVyLi4KPiA+PiBBbnl3YXksIGxldCdzIGNjLiBoZXIgbm93Li4uIDotKQo+ID4+Cj4gPj4gPgo+ ID4+ID4+IFdlIGFyZSBtZWFzdXJpbmcgdGhlIGV4ZWN1dGlvbiB0aW1lIGJldHdlZW4gbmF0aXZl IG1hY2hpbmUgZW52aXJvbm1lbnQKPiA+PiA+PiBhbmQgeGVuIHZpcnR1YWxpemF0aW9uIGVudmly b25tZW50IHVzaW5nIFBBUlNFQyBCZW5jaG1hcmsgWzFdLgo+ID4+ID4+Cj4gPj4gPj4gSW4gdmly dHVhbGl6dGlvbiBlbnZpcm9ubWVudCwgd2UgcnVuIGEgZG9tVSB3aXRoIHRocmVlIFZDUFVzLCBl YWNoIG9mCj4gPj4gPj4gdGhlbSBwaW5uZWQgdG8gYSBjb3JlOyB3ZSBwaW4gdGhlIGRvbTAgdG8g YW5vdGhlciBjb3JlIHRoYXQgaXMgbm90Cj4gPj4gPj4gdXNlZCBieSB0aGUgZG9tVS4KPiA+PiA+ Pgo+ID4+ID4+IEluc2lkZSB0aGUgTGludXggaW4gZG9tVSBpbiB2aXJ0dWFsaXphdGlvbiBlbnZp cm9ubWVudCBhbmQgaW4gbmF0aXZlCj4gPj4gPj4gZW52aXJvbm1lbnQsICBXZSB1c2VkIHRoZSBj cHVzZXQgdG8gaXNvbGF0ZSBhIGNvcmUgKG9yIFZDUFUpIGZvciB0aGUKPiA+PiA+PiBzeXN0ZW0g cHJvY2Vzc29ycyBhbmQgdG8gaXNvbGF0ZSBhIGNvcmUgZm9yIHRoZSBiZW5jaG1hcmsgcHJvY2Vz c2VzLgo+ID4+ID4+IFdlIGFsc28gY29uZmlndXJlZCB0aGUgTGludXggYm9vdCBjb21tYW5kIGxp bmUgd2l0aCBpc29jcHVzPSBvcHRpb24gdG8KPiA+PiA+PiBpc29sYXRlIHRoZSBjb3JlIGZvciBi ZW5jaG1hcmsgZnJvbSBvdGhlciB1bm5lY2Vzc2FyeSBwcm9jZXNzZXMuCj4gPj4gPgo+ID4+ID4g WW91IG1heSB3YW50IHRvIGp1c3Qgb2ZmbGluZSB0aGVtIGFuZCBhbHNvIGJvb3QgdGhlIG1hY2hp bmUgd2l0aCBOVU1BCj4gPj4gPiBkaXNhYmxlZC4KPiA+Pgo+ID4+IFJpZ2h0LCB0aGUgbWFjaGlu ZSBpcyBib290ZWQgdXAgd2l0aCBOVU1BIGRpc2FibGVkLgo+ID4+IFdlIHdpbGwgb2ZmbGluZSB0 aGUgdW5uZWNlc3NhcnkgY29yZXMgdGhlbi4KPiA+Pgo+ID4+ID4KPiA+PiA+Pgo+ID4+ID4+IFdl IGV4cGVjdCB0aGF0IGV4ZWN1dGlvbiB0aW1lIG9mIGJlbmNobWFya3MgaW4geGVuIHZpcnR1YWxp emF0aW9uCj4gPj4gPj4gZW52aXJvbm1lbnQgaXMgbGFyZ2VyIHRoYW4gdGhlIGV4ZWN1dGlvbiB0 aW1lIGluIG5hdGl2ZSBtYWNoaW5lCj4gPj4gPj4gZW52aXJvbm1lbnQuIEhvd2V2ZXIsIHRoZSBl dmFsdWF0aW9uIGdhdmUgdXMgYW4gb3Bwb3NpdGUgcmVzdWx0Lgo+ID4+ID4+Cj4gPj4gPj4gQmVs b3cgaXMgdGhlIGV2YWx1YXRpb24gZGF0YSBmb3IgdGhlIGNhbm5lYWwgYW5kIHN0cmVhbWNsdXN0 ZXIgYmVuY2htYXJrczoKPiA+PiA+Pgo+ID4+ID4+IEJlbmNobWFyazogY2FubmVhbCwgaW5wdXQ9 c2ltbGFyZ2UsIGNvbmY9Z2NjLXNlcmlhbAo+ID4+ID4+IE5hdGl2ZTogNi4zODdzCj4gPj4gPj4g VmlydHVhbGl6YXRpb246IDUuODkwcwo+ID4+ID4+Cj4gPj4gPj4gQmVuY2htYXJrOiBzdHJlYW1j bHVzdGVyLCBpbnB1dD1zaW1sYXJnZSwgY29uZj1nY2Mtc2VyaWFsCj4gPj4gPj4gTmF0aXZlOiA1 LjI3NnMKPiA+PiA+PiBWaXJ0dWFsaXphdGlvbjogNS4yNDBzCj4gPj4gPj4KPiA+PiA+PiBJcyB0 aGVyZSBhbnl0aGluZyB3cm9uZyB3aXRoIG91ciBldmFsdWF0aW9uIHRoYXQgbGVhZCB0byB0aGUg YWJub3JtYWwKPiA+PiA+PiBwZXJmb3JtYW5jZSByZXN1bHRzPwo+ID4+ID4KPiA+PiA+IE5vdGhp bmcgaXMgd3JvbmcuIFZpcnR1YWxpemF0aW9uIGlzIG5hdHVyYWxseSBmYXN0ZXIgdGhhbiBiYXJl bWV0YWwhCj4gPj4gPgo+ID4+ID4gOi0pCj4gPj4gPgo+ID4+ID4gTm8gY2x1ZSBzYWRseS4KPiA+ Pgo+ID4+IEFoLWhhLiBUaGlzIGlzIHJlYWxseSBzdXJwcmlzaW5nIHRvIG1lLi4uLiBXaHkgd2ls bCBpdCBzcGVlZCB1cCB0aGUKPiA+PiBzeXN0ZW0gYnkgYWRkaW5nIG9uZSBtb3JlIGxheWVyPyBV bmxlc3MgdGhlIHZpcnR1YWxpemF0aW9uIGRpc2FibGVkCj4gPj4gc29tZSBzZXJ2aWNlcyB0aGF0 IG9jY3VyIGluIG5hdGl2ZSBhbmQgaW50ZXJmZXJlIHdpdGggdGhlIGJlbmNobWFyay4KPiA+Pgo+ ID4+IElmIHZpcnR1YWxpemF0aW9uIGlzIGZhc3RlciB0aGFuIGJhcmVtZXRhbCBieSBuYXR1cmUs IHdoeSB3ZSBjYW4gc2VlCj4gPj4gdGhhdCBzb21lIGV4cGVyaW1lbnQgc2hvd3MgdGhhdCB2aXJ0 dWFsaXphdGlvbiBpbnRyb2R1Y2VzIG92ZXJoZWFkPwo+ID4KPiA+IEVsZW5hIHRvbGQgbWUgdGhh dCB0aGVyZSB3ZXJlIHNvbWUgd2VpcmQgcmVncmVzc2lvbiBpbiBMaW51eCA0LjEgLSB3aGVyZQo+ ID4gQ1BVIGJ1cm5pbmcgd29ya2xvYWRzIHdlcmUgX3Nsb3dlcl8gb24gYmFyZW1ldGFsIHRoYW4g YXMgZ3Vlc3RzLgo+IAo+IEhpIEVsZW5hLAo+IFdvdWxkIHlvdSBtaW5kIHNoYXJpbmcgd2l0aCB1 cyBzb21lIG9mIHlvdXIgZXhwZXJpZW5jZSBvZiBob3cgeW91Cj4gZm91bmQgdGhlIHJlYWwgcmVh c29uPyBEaWQgeW91IHVzZSBzb21lIHRvb2wgb3Igc29tZSBtZXRob2RvbG9neSB0bwo+IHBpbiBk b3duIHRoZSByZWFzb24gKGkuZSwgIENQVSBidXJuaW5nIHdvcmtsb2FkcyBpbiBuYXRpdmUgaXMg X3Nsb3dlcl8KPiBvbiBiYXJlbWV0YWwgdGhhbiBhcyBndWVzdHMpPwo+CgpIaSBNZW5nCgpZZXMs IHN1cmUhCgpXaGlsZSB3b3JraW5nIG9uIHBlcmZvcm1hbmNlIHRlc3RzIGZvciBzbXQtZXhwb3Np bmcgcGF0Y2hlcyBmcm9tIEpvYW8KSSBydW4gQ1BVIGJvdW5kIHdvcmtsb2FkIGluIEhWTSBndWVz dCBhbmQgdXNpbmcgc2FtZSBrZXJuZWwgaW4gYmFyZW1ldGFsCnJ1biBzYW1lIHRlc3QuCldoaWxl IHRlc3RpbmcgY3B1LWJvdW5kIHdvcmtsb2FkIG9uIGJhcmVtZXRhbCBsaW51eCAoNC4xLjAtcmMy KQpJIGZvdW5kIHRoYXQgdGhlIHRpbWUgdG8gY29tcGxldGUgdGhlIHNhbWUgdGVzdCBpcyBmZXcg dGltZXMgbW9yZSB0aGF0CmFzIGl0IHRha2VzIGZvciB0aGUgc2FtZSB1bmRlciBIVk0gZ3Vlc3Qu CkkgaGF2ZSB0cmllZCB0ZXN0cyB3aGVyZSBrZXJuZWwgdGhyZWFkcyBwaW5uZWQgdG8gY29yZXMg YW5kIHdpdGhvdXQgcGlubmluZy4KVGhlIGV4ZWN1dGlvbiB0aW1lcyBhcmUgbW9zdCBvZiB0aGUg dGltZXMgdGFrZSBhcyB0d2ljZSBsb25nZXIsIHNvbWV0aW1lcyA0CnRpbWVzIGxvbmdlciB0aGF0 IEhWTSBjYXNlLgoKSW50ZXJlc3RpbmcgaXMgbm90IG9ubHkgdGhhdCBpdCB0YWtlcyBzb21ldGlt ZXMgMy00IHRpbWVzIG1vcmUKdGhhbiBIVk0gZ3Vlc3QsIGJ1dCBhbHNvIHRoYXQgdGVzdCB3aXRo IGJvdW5kIHRocmVhZHMgKHRvIGNvcmVzKSB0YWtlcyBhbG1vc3QKMyB0aW1lcyBsb25nZXIKdG8g ZXhlY3V0ZSB0aGFuIHJ1bm5pbmcgc2FtZSBjcHUtYm91bmQgdGVzdCB1bmRlciBIVk0gKGluIGFs bApjb25maWd1cmF0aW9ucykuCgpJIHJ1biBlYWNoIHRlc3QgNSB0aW1lcyBhbmQgaGVyZSBhcmUg dGhlIGV4ZWN1dGlvbiB0aW1lcyAoc2Vjb25kcyk6CgotLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tCiAgICAgICAgYmFyZW1ldGFsICAgICAgICAgICB8CnRo cmVhZF9iaW5kIHwgdGhyZWFkIHVuYmluZCB8IEhWTSBwaW5uZWQgdG8gY29yZXMKLS0tLS0tLS0t LS0gfC0tLS0tLS0tLS0tLS0tLXwtLS0tLS0tLS0tLS0tLS0tLS0tLS0KICAgICA3NCAgICAgfCAg ICAgODMgICAgICAgIHwgICAgICAgIDI4CiAgICAgNzQgICAgIHwgICAgIDg4ICAgICAgICB8ICAg ICAgICAyOAogICAgIDc0ICAgICB8ICAgICAzOCAgICAgICAgfCAgICAgICAgMjgKICAgICA3NCAg ICAgfCAgICAgNzMgICAgICAgIHwgICAgICAgIDI4CiAgICAgNzQgICAgIHwgICAgIDg3ICAgICAg ICB8ICAgICAgICAyOAoKU29tZXRpbWVzIGJldHRlciB0aW1lcyB3ZXJlIG9uIHVuYmluZGVkIHRl c3RzLCBidXQgbm90IG9mdGVuIGVub3VnaAp0byBwcmVzZW50IGl0IGhlcmUuIFNvbWUgcmVzdWx0 cyBhcmUgbXVjaCB3b3JzZSBhbmQgcmVhY2ggdXAgdG8gMTIwCnNlY29uZHMuCgpFYWNoIHRlc3Qg aGFzIDgga2VybmVsIHRocmVhZHMuIEluIGJhcmVtZXRhbCBjYXNlIEkgdHJpZWQgdGhlIGZvbGxv d2luZzoKLSBudW1hIG9mZixvbjsKLSBhbGwgY3B1cyBhcmUgb247Ci0gaXNvbGF0ZSBjcHVzIGZy b20gZmlyc3Qgbm9kZTsKLSBzZXQgaW50ZWxfaWRsZS5tYXhfY3N0YXRlPTE7Ci0gZGlzYWJsZSBp bnRlbF9wc3RhdGU7CgpJIGRvbnQgdGhpbmsgSSBoYXZlIGV4aGF1c3RlZCBhbGwgdGhlIG9wdGlv bnMgaGVyZSwgYnV0IGl0IGxvb2tlZCBsaWtlCnR3byBsYXN0IGNoYW5nZXMgZGlkIGltcHJvdmUg cGVyZm9ybWFuY2UsIGJ1dCB3YXMgc3RpbGwgbm90IGNvbXBhcmFibGUgdG8KSFZNIGNhc2UuCkkg YW0gdHJ5aW5nIHRvIGZpbmQgd2hlcmUgcmVncmVzc2lvbiBoYWQgaGFwcGVuZWQuIFBlcmZvcm1h bmNlIG9uIG5ld2VyCmtlcm5lbCAoSSB0cmllZCA0LjUuMC1yYzQrKSB3YXMgY2xvc2Ugb3IgYmV0 dGVyIHRoYW4gSFZNLgoKSSBhbSB0cnlpbmcgdG8gZmluZCBmIHRoZXJlIHdlcmUgc29tZSByZWxl dmFudCByZWdyZXNzaW9ucyB0byB1bmRlcnN0YW5kCnRoZSByZWFzb24gb2YgdGhpcy4KCgpXaGF0 IGtlcm5lbCB5b3UgZ3V5cyB1c2U/CgpFbGVuYQoKU2VlIG1vcmUgZGVzY3JpcHRpb24gb2YgdGhl IHRlc3RzIGhlcmU6Cmh0dHA6Ly9saXN0cy54ZW5wcm9qZWN0Lm9yZy9hcmNoaXZlcy9odG1sL3hl bi1kZXZlbC8yMDE2LTAxL21zZzAyODc0Lmh0bWwKSm9hbyBwYXRjaGVzIGFyZSBoZXJlOgpodHRw Oi8vbGlzdHMueGVucHJvamVjdC5vcmcvYXJjaGl2ZXMvaHRtbC94ZW4tZGV2ZWwvMjAxNi0wMi9t c2cwMzExNS5odG1sKQoKCgoKPiAKPiAKPiA+Cj4gPiBVcGRhdGluZyB0byBhIGxhdGVyIGtlcm5l bCBmaXhlZCB0aGF0ICAtd2hlcmUgb25lIGNvdWxkIHNlZSB0aGF0Cj4gPiBiYXJlbWV0YWwgd2Fz IGZhc3RlciAob3Igb24gcGFyKSB3aXRoIHRoZSBndWVzdC4KPiAKPiBUaGFuayB5b3UgdmVyeSBt dWNoLCBLb25yYWQhIFdlIGFyZSBnaXZpbmcgaXQgYSBzaG90LiA6LUQKPiAKPiBCZXN0IFJlZ2Fy ZHMsCj4gCj4gTWVuZwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRw Oi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK