From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 219B151AEFF; Tue, 22 Sep 2026 10:37:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790073471; cv=none; b=S9R64IAWng9wpooRrO6j9zNQyDt3m1Z3Gh0KYp9KZ72bbb4ZS3CAxrABUkx9kKygZdCn3CwoP60cDIgANVSBUjVUTH5LMBqpYLgUfJidFACgb0Js/74bXyIBwUFZdPPafYNsIpWjmGkf1jibb6H63wy7V2C50cA7ZP6n19ibyBo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790073471; c=relaxed/simple; bh=xFGix9Z8/zY86bfBpsNb2QjqOLplnerBwkas07JuxUc=; h=Message-ID:Subject:From:To:Cc:Date:in-reply-to:Content-Type: MIME-Version; b=APKaAIQX3KS1PTQFSM/2n6UJ/4ORF3wd7LxJOiGz0uqcGdh0nYIWYxWcQlyyLznG02j31JUtCOJr2x29VyEH2oLHQJAWSRpmB2/R9VBz1pGnwSqd3c3c3TSn3YxGo++c/BFi8p564aoYu5VwD1jtPuhYNZQuwy28bwq2gryybLA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=casper.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=TmIiloxG; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=casper.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="TmIiloxG" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=MIME-Version:Content-Type:in-reply-to: Date:Cc:To:From:Subject:Message-ID:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:References; bh=hv5h4NGxrzGpFIE1yKPaIIiAr5k3jtJ0S7Vgu/PortU=; b=TmIiloxGY3jUlNCoRqIaKLTMsH XFmbEgkH98lWV7TM9m9PWfiOPqNE+2uBLvS7gaqyrFWZgF8x1H8J7jrwMIicoflT++kp/a2UQyyk5 8tyymPP/ruB031lAB6UCnQxKep4AsMgsEG2H/2UyTM19s1UUAIS6fnAse5l9Zv+cRy4hW6vmL1S9s onFT9I8c7FOVQq977VFwlvuxeam3762TZOkQQZh9cAC3jHuU0+qip2VDN01CbD38MqzIFKugkI1NT bQh1gM9B0jsp4xUjXQ9QmX6QJeh3MaLeMKvA4c+ztkxFuiwb9nnsm4ccx+NbUyQ3NIoP7TAPiK6BT hO/t4Tkg==; Received: from [54.239.6.184] (helo=u09cd745991455d.ant.amazon.com) by casper.infradead.org with esmtpsa (Exim 4.99.1 #2 (Red Hat Linux)) id 1x8xse-00000008EZt-48pO; Tue, 22 Sep 2026 10:37:45 +0000 Message-ID: <84e1f6c28becdf94ccb72f5c64c0001768167fc2.camel@infradead.org> Subject: Re: [PATCH 00/17] KVM: Use atomic SRCU for gfn-to-pfn cache, reinstate guest mode for x86 nesting From: David Woodhouse To: KunWu Chan Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, rcu@vger.kernel.org, pbonzini@redhat.com, seanjc@google.com, paul@xen.org, paulmck@kernel.org, kunwu.chan@linux.dev, nh-open-source@amazon.com Date: Tue, 22 Sep 2026 12:37:43 +0200 in-reply-to: Content-Type: multipart/signed; micalg="sha-256"; protocol="application/pkcs7-signature"; boundary="=-S2ZqIPaSdod98Hqo3xhk" User-Agent: Evolution 3.62.0-0ubuntu1~ppa1~24.04 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html --=-S2ZqIPaSdod98Hqo3xhk Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, 2026-09-22 at 11:16 +0800, KunWu Chan wrote: > Do you happen to have any numbers comparing the GPC invalidation > latency with regular SRCU vs. `synchronize_srcu_atomic()`? If there > are also numbers with the reader-free fastpath, that would be useful > for understanding its impact as well. Yeah, I built some latency tests and was posting results in the earlier thread=C2=B9, on a few different test hosts. I compared against the existing rwlock, as well as SRCU both with and without the try_synchronize_srcu() fast path. Mostly looking at the invalidation latency, since that was Sean's stated concern with the original RCU-based proof of concept. All from the same test: 12 concurrent guest-memory invalidation reproducers hammering the Xen shinfo/vcpu_info caches, 300 second windows, measuring the invalidation drain end-to-end. 192-way Granite Rapids, PREEMPT_RT production config: rwlock (before this series) avg 4.4=C2=B5s max 3.85ms synchronize_srcu_expedited() drain avg 8.6=C2=B5s max 810=C2=B5s synchronize_srcu_atomic() + fastpath avg ~3=C2=B5s max 801=C2=B5s The A/B numbers I have for the reader-free fast path were on different hardware (128-way Ice Lake, production-like config): synchronize_srcu_atomic(), no fastpath avg 8.0=C2=B5s max 6.0ms with the inline no-readers proof avg 3.6=C2=B5s max 326=C2=B5s If you want, it isn't much effort for me to tell my friend to redo any of the measurements. =C2=B9 https://lore.kernel.org/all/0d4af6318ac67486858be1df8d436147b444a2d2= .camel@infradead.org/ --=-S2ZqIPaSdod98Hqo3xhk Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCE8Ew ggWvMIIEl6ADAgECAhANkOKMSmGXhF5eMl0rsRhvMA0GCSqGSIb3DQEBDAUAMGUxCzAJBgNVBAYT AlVTMRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5jb20xJDAi BgNVBAMTG0RpZ2lDZXJ0IEFzc3VyZWQgSUQgUm9vdCBHMjAeFw0yNDAzMTMwMDAwMDBaFw0zNDAz MTIyMzU5NTlaMGIxCzAJBgNVBAYTAlVTMRcwFQYDVQQKEw5EaWdpQ2VydCwgSW5jLjE6MDgGA1UE AxMxRGlnaUNlcnQgQXNzdXJlZCBHMiBTTUlNRSBSU0E0MDk2IFNIQTM4NCAyMDI0IENBMTCCAiIw DQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAOfSIeC0vv1xPQ+dgSxbIIrkaru6skAWJYaGFzmv q4Kq+2wU2jxhcWlJg/JeP5jEkq/LM3pn5aaLao79j+XRmS7J1ZpJKUODJVoM4s9MQJhTMvo4qS5Z S64g6QR7Obkz3I1Lr3aWeSBmDDEyzue+NKtuWZ1Cxy3RdXo/w5HgRc3l2AercOM3Gt1XonTzEtTb Z/Hwc0Sn9Gz8RmGRK6Ka4hVDl8q/2l110KaV233Kh5etP0csXS8MIMdVRfRu3sc5hp13DG7lCKzK 72a2GEpI8Wpl26G6I1/LMzz/98T+FqjTqxsdquk7Cj7m2vKGLW1BorpQH7WFGPdJQXJe1hfbfiZA CcVdCtl4nAacFacmsiArZBfX7AQGL7isvHUwwYFEtcApyGW4p2Lt+t8nvU0CANA6BHOpOz1xOP8W mAESbUriIjyuTUf3fJ9oDNCurVqhASMJCDaWI3lYX/QAoiAzt6akqbbZxo2ujW7mGGqc0KxqE2cs h2T79v7pC8aUtHBfwNrTR19GnZVxE0eQ7ViIQhR6mpSaUQFA9sG+cmD2G8TnCgYsLa0q8De6F61a CBevQGHNzrbZ3JAMneveYg/Jy1XxQHDRcvrMfWKe0jjcWbdKYlaGVPm5V1ILwYz7Yv5ewo3NUrxI GJiywe9qPhuJSDZs7VehTuI0FxGIsgKzVjgbAgMBAAGjggFcMIIBWDASBgNVHRMBAf8ECDAGAQH/ AgEAMB0GA1UdDgQWBBT3m6JO05fF9DQPQw6Bhc6RkzKv+TAfBgNVHSMEGDAWgBTOw0q5mVXyuNtg v6l+vVa1lzan1jAOBgNVHQ8BAf8EBAMCAYYwHQYDVR0lBBYwFAYIKwYBBQUHAwQGCCsGAQUFBwMC MHkGCCsGAQUFBwEBBG0wazAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQuY29tMEMG CCsGAQUFBzAChjdodHRwOi8vY2FjZXJ0cy5kaWdpY2VydC5jb20vRGlnaUNlcnRBc3N1cmVkSURS b290RzIuY3J0MEUGA1UdHwQ+MDwwOqA4oDaGNGh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdp Q2VydEFzc3VyZWRJRFJvb3RHMi5jcmwwEQYDVR0gBAowCDAGBgRVHSAAMA0GCSqGSIb3DQEBDAUA A4IBAQA+b8Uw53sDspdZgukU+qzLyyHkcjlxGGhHlP+zrmDLKm1wEFvCRS2pili3Hy67i8N4N5NU vw5Rg6kv3lxb9S9Rktxk43k+tvm68pl7OxQE55ZjVY87P0lUPGwEqOOwLLyH02ZQcsfq5p5LrOH9 0JvmvZ1yy73HS+VpDAqOlytE0NSvTIRqFFkKQGQwfjvtql9YflujuNNvJztjBaHKYZsnNSg+J38o jYq4TP3pSg3UdVH0PncVjPQyqxC9xef5Xae92Kbkzol3x7Nel3A1bwAkalrDMspvTHvey6LfiBks FIqviTnoy7fgjaRAJgHS+RXx/cmuRd3rUAclSVVrYu8RMIIHAzCCBOugAwIBAgIQAzUotrsybJHx HTjKOIVdIDANBgkqhkiG9w0BAQsFADBiMQswCQYDVQQGEwJVUzEXMBUGA1UEChMORGlnaUNlcnQs IEluYy4xOjA4BgNVBAMTMURpZ2lDZXJ0IEFzc3VyZWQgRzIgU01JTUUgUlNBNDA5NiBTSEEzODQg MjAyNCBDQTEwHhcNMjYwNzE4MDAwMDAwWhcNMjgwMTA0MjM1OTU5WjAeMRwwGgYDVQQDDBNkd213 MkBpbmZyYWRlYWQub3JnMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA2pYux73kdbYX sWF8f1u6DJP91qcqaZetsyfPkZk0B+MmXmAEv0kVes5n15V2mbDThOnpoPFly0UugQO9JYqLfrtD tKD5yL58fgrDB9Dw+LQikgrHafl6YSCds5AvUu/8hw2J6noKrcOLJpKlKn9Fl/4IB9Q3JIdLx5aa EtTqMalIPqHFOlgrJ7s+aua8xbB8YQ9ahqYBXWRJNv3P/2b1DYtdrz1oqZPE3CcB8Pc6Gf2a1Tcm 6TAgtEx7Cf1BFcrsrMz7TWHmGQITieNb2r9UYWSc2Gp+GtYFNJCgT0JJXKUBIauPMKBLteYrL8Fo ff/uY44dC/mDWjdCP/5x0qelPQjlBvWdHL5zvBTOj06rJ0m3HNI/hnIcDh0Qu2j9reb9rLVcdym6 bWmBM4uDEB8Zv9Ph0KTBFSy1IosyakuD1j1Os30EzjGfbi0EUXIvnOcYbTBAbM5UAzrxEHMhBvoX Pvnx+OyvjJmc9tWxTX6AcSz+m40esbT17URBeZS18afgieiikm5TynlUYP1LciR3hSgGVzvGXnKO 02VDFR5itGWdRKZ2W5wIShNfWfhSa0D0K5UdIDt5Qc7sjzwK1Yb1sY5Tu0uA5mhIS82q1ov83uxB sFkriNnhGv/M1NCDVLBiOMsHu73qUM+yKmgKLwF9Hfn9WI25glbAMI4S5r3hYzcCAwEAAaOCAfcw ggHzMB8GA1UdIwQYMBaAFPebok7Tl8X0NA9DDoGFzpGTMq/5MB0GA1UdDgQWBBRcYhqbcGzn1jrT JOZaB8O7qllDpzAwBgNVHREEKTAngRNkd213MkBpbmZyYWRlYWQub3JngRBkYXZpZEB3b29kaG91 LnNlMBQGA1UdIAQNMAswCQYHZ4EMAQUBAjAOBgNVHQ8BAf8EBAMCBeAwHQYDVR0lBBYwFAYIKwYB BQUHAwIGCCsGAQUFBwMEMIGpBgNVHR8EgaEwgZ4wTaBLoEmGR2h0dHA6Ly9jcmwzLmRpZ2ljZXJ0 LmNvbS9EaWdpQ2VydEFzc3VyZWRHMlNNSU1FUlNBNDA5NlNIQTM4NDIwMjRDQTEuY3JsME2gS6BJ hkdodHRwOi8vY3JsNC5kaWdpY2VydC5jb20vRGlnaUNlcnRBc3N1cmVkRzJTTUlNRVJTQTQwOTZT SEEzODQyMDI0Q0ExLmNybDCBjQYIKwYBBQUHAQEEgYAwfjAkBggrBgEFBQcwAYYYaHR0cDovL29j c3AuZGlnaWNlcnQuY29tMFYGCCsGAQUFBzAChkpodHRwOi8vY2FjZXJ0cy5kaWdpY2VydC5jb20v RGlnaUNlcnRBc3N1cmVkRzJTTUlNRVJTQTQwOTZTSEEzODQyMDI0Q0ExLmNydDANBgkqhkiG9w0B AQsFAAOCAgEAocabrh1cPd5s3vY5rnlBVQSTc7zs2ZWs67dAIltR+05WELrYClVzzUhMs/LOJPlr EUo45UDDomXq38DxFepaPd9+iNLjXfn33EX/IG44j04lU/oF/Rg9VeQILkYLbCZ/x9wOjNHZc4SN ydY7Dhvf/sT5aBz88u7D5+azZJ7Qf1U57wYseCH1Mt0nDrtr5y19IJ8D9xJJ33RFL6vfpHZBBAQ8 +3RqkKNxLoV2aFvQhxdhjNLDqTv3LjUIdicwPraN7JkxEu7CV2Lka7eRqJgkWL7SK0YmBjGpRafs +icP/ON5RCCKTTb6VlX8eTG2sJJfsFhvJNCCt6xexbWzWtIrfP7NvPBvwBB737AyEGBZkS5aNizT McURJGTv9UKvBh1LF/+tNhYtLvPCN7oecGzhCHht9jcwSkygTo3Y6YlK3QgOu+ncmiBbfeuwlLZ1 LxbYvG6hgNqXv7u6YyADbYajAQJXJ2OQen39pm3Q/AQSyLYG+B8lDglWsM8tYXPlEdrYJcksGK6F nqIX6Bumn43rBooLJdiZp4WmfWdL2pxe+LxRDjprmqu1WprixDxULSTOKJZoqTlugs6y3Bc+if+s gHnBBtz9WQ6MtPHkh7zONDAFIKcBmv8OqPQCx0F3Wv3OEybwMpXx0OsKgK8wLldaX1pXcMuyDgTL Sqs0AV0OHUgwggcDMIIE66ADAgECAhADNSi2uzJskfEdOMo4hV0gMA0GCSqGSIb3DQEBCwUAMGIx CzAJBgNVBAYTAlVTMRcwFQYDVQQKEw5EaWdpQ2VydCwgSW5jLjE6MDgGA1UEAxMxRGlnaUNlcnQg QXNzdXJlZCBHMiBTTUlNRSBSU0E0MDk2IFNIQTM4NCAyMDI0IENBMTAeFw0yNjA3MTgwMDAwMDBa Fw0yODAxMDQyMzU5NTlaMB4xHDAaBgNVBAMME2R3bXcyQGluZnJhZGVhZC5vcmcwggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDali7HveR1thexYXx/W7oMk/3Wpyppl62zJ8+RmTQH4yZe YAS/SRV6zmfXlXaZsNOE6emg8WXLRS6BA70liot+u0O0oPnIvnx+CsMH0PD4tCKSCsdp+XphIJ2z kC9S7/yHDYnqegqtw4smkqUqf0WX/ggH1Dckh0vHlpoS1OoxqUg+ocU6WCsnuz5q5rzFsHxhD1qG pgFdZEk2/c//ZvUNi12vPWipk8TcJwHw9zoZ/ZrVNybpMCC0THsJ/UEVyuyszPtNYeYZAhOJ41va v1RhZJzYan4a1gU0kKBPQklcpQEhq48woEu15isvwWh9/+5jjh0L+YNaN0I//nHSp6U9COUG9Z0c vnO8FM6PTqsnSbcc0j+GchwOHRC7aP2t5v2stVx3KbptaYEzi4MQHxm/0+HQpMEVLLUiizJqS4PW PU6zfQTOMZ9uLQRRci+c5xhtMEBszlQDOvEQcyEG+hc++fH47K+MmZz21bFNfoBxLP6bjR6xtPXt REF5lLXxp+CJ6KKSblPKeVRg/UtyJHeFKAZXO8Zeco7TZUMVHmK0ZZ1EpnZbnAhKE19Z+FJrQPQr lR0gO3lBzuyPPArVhvWxjlO7S4DmaEhLzarWi/ze7EGwWSuI2eEa/8zU0INUsGI4ywe7vepQz7Iq aAovAX0d+f1YjbmCVsAwjhLmveFjNwIDAQABo4IB9zCCAfMwHwYDVR0jBBgwFoAU95uiTtOXxfQ0 D0MOgYXOkZMyr/kwHQYDVR0OBBYEFFxiGptwbOfWOtMk5loHw7uqWUOnMDAGA1UdEQQpMCeBE2R3 bXcyQGluZnJhZGVhZC5vcmeBEGRhdmlkQHdvb2Rob3Uuc2UwFAYDVR0gBA0wCzAJBgdngQwBBQEC MA4GA1UdDwEB/wQEAwIF4DAdBgNVHSUEFjAUBggrBgEFBQcDAgYIKwYBBQUHAwQwgakGA1UdHwSB oTCBnjBNoEugSYZHaHR0cDovL2NybDMuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0QXNzdXJlZEcyU01J TUVSU0E0MDk2U0hBMzg0MjAyNENBMS5jcmwwTaBLoEmGR2h0dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNv bS9EaWdpQ2VydEFzc3VyZWRHMlNNSU1FUlNBNDA5NlNIQTM4NDIwMjRDQTEuY3JsMIGNBggrBgEF BQcBAQSBgDB+MCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2VydC5jb20wVgYIKwYBBQUH MAKGSmh0dHA6Ly9jYWNlcnRzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEFzc3VyZWRHMlNNSU1FUlNB NDA5NlNIQTM4NDIwMjRDQTEuY3J0MA0GCSqGSIb3DQEBCwUAA4ICAQChxpuuHVw93mze9jmueUFV BJNzvOzZlazrt0AiW1H7TlYQutgKVXPNSEyz8s4k+WsRSjjlQMOiZerfwPEV6lo9336I0uNd+ffc Rf8gbjiPTiVT+gX9GD1V5AguRgtsJn/H3A6M0dlzhI3J1jsOG9/+xPloHPzy7sPn5rNkntB/VTnv Bix4IfUy3ScOu2vnLX0gnwP3EknfdEUvq9+kdkEEBDz7dGqQo3EuhXZoW9CHF2GM0sOpO/cuNQh2 JzA+to3smTES7sJXYuRrt5GomCRYvtIrRiYGMalFp+z6Jw/843lEIIpNNvpWVfx5Mbawkl+wWG8k 0IK3rF7FtbNa0it8/s288G/AEHvfsDIQYFmRLlo2LNMxxREkZO/1Qq8GHUsX/602Fi0u88I3uh5w bOEIeG32NzBKTKBOjdjpiUrdCA676dyaIFt967CUtnUvFti8bqGA2pe/u7pjIANthqMBAlcnY5B6 ff2mbdD8BBLItgb4HyUOCVawzy1hc+UR2tglySwYroWeohfoG6afjesGigsl2JmnhaZ9Z0vanF74 vFEOOmuaq7VamuLEPFQtJM4olmipOW6CzrLcFz6J/6yAecEG3P1ZDoy08eSHvM40MAUgpwGa/w6o 9ALHQXda/c4TJvAylfHQ6wqArzAuV1pfWldwy7IOBMtKqzQBXQ4dSDGCBCAwggQcAgEBMHYwYjEL MAkGA1UEBhMCVVMxFzAVBgNVBAoTDkRpZ2lDZXJ0LCBJbmMuMTowOAYDVQQDEzFEaWdpQ2VydCBB c3N1cmVkIEcyIFNNSU1FIFJTQTQwOTYgU0hBMzg0IDIwMjQgQ0ExAhADNSi2uzJskfEdOMo4hV0g MA0GCWCGSAFlAwQCAQUAoIIBezAYBgkqhkiG9w0BCQMxCwYJKoZIhvcNAQcBMBwGCSqGSIb3DQEJ BTEPFw0yNjA5MjIxMDM3NDNaMC8GCSqGSIb3DQEJBDEiBCAMu4F49T7KSE9Tg5YezKvP+XqmTjlU q0os797NgHDSvzCBhQYJKwYBBAGCNxAEMXgwdjBiMQswCQYDVQQGEwJVUzEXMBUGA1UEChMORGln aUNlcnQsIEluYy4xOjA4BgNVBAMTMURpZ2lDZXJ0IEFzc3VyZWQgRzIgU01JTUUgUlNBNDA5NiBT SEEzODQgMjAyNCBDQTECEAM1KLa7MmyR8R04yjiFXSAwgYcGCyqGSIb3DQEJEAILMXigdjBiMQsw CQYDVQQGEwJVUzEXMBUGA1UEChMORGlnaUNlcnQsIEluYy4xOjA4BgNVBAMTMURpZ2lDZXJ0IEFz c3VyZWQgRzIgU01JTUUgUlNBNDA5NiBTSEEzODQgMjAyNCBDQTECEAM1KLa7MmyR8R04yjiFXSAw DQYJKoZIhvcNAQEBBQAEggIAlHvLt5Dvywh1fQP0Vk3E8niWogFP540rbUxchS2C3BNSWT1dmTv2 0ZFFcPuB6AzwkjfgzgwTVWpkw3kH5FPAEfJYIiiWPIPJMhjbsFMRgpFOgkQhuulh3YaWjF3Oph5G 7Xr4TWlXK7kfeN6BS2JLRB/7dphkAD7G0EYpUYloYWg4CTn7YuaMvOv4FbgvnjKxAzIfPa4lJEil 2fRCnNzlrs0icREb1ydYlIfeLtdQVVkTqyBmRh1UMh+QWCfNegiGsknhXiPTxH89iUfHAD/mMgrp UrCIYhgmtjw2K1cmNwdPXfxyWF9fdXgcIMneEyczO8uMnvD2ac0KHoaN9r94Wix3hhkUFls0y2v7 w8e/FJEnmQUspCov6dbcUYEuMJNMKEoK7i1si8blb7t38LtsXO8njDuDBVNRP6hv08SPrbHYRHGZ qXpbGie3d93O75UI8LC6sezkMQ9gIy/Ncup0eqVGDZcI9alBIgKVGptajVZGsAKRbLsr5Wf2m8cO 4luvKbVn49Q4zO1fIa3ITqDgQNnalZFi4MUvYyQzeEhZ7vKwtri6CBZ6lkWLBGSqr4SgOF0NHPM/ fYIzWjrhsxCwXRt3tO4ZxhMUagOdwQbKu39+Ks7McqhzcbwSW0yYb4TAZ82JceGqPdGwUhKHikWy /T+0yIi6XaW24sCWKd6AIWsAAAAAAAA= --=-S2ZqIPaSdod98Hqo3xhk--