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received-spf: None (protection.outlook.com: mapr.com does not designate permitted sender hosts) authentication-results: spf=none (sender IP is ) smtp.mailfrom=cshi@mapr.com; spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: multipart/alternative; boundary="_000_MWHPR1601MB1168B709572C7B57CE953B6BAAB30MWHPR1601MB1168_" MIME-Version: 1.0 X-OriginatorOrg: mapr.com X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Aug 2017 17:45:29.4007 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 2573c0c8-6f2a-4418-a58a-a742cf6415fb X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR1601MB1167 archived-at: Tue, 01 Aug 2017 17:45:42 -0000 --_000_MWHPR1601MB1168B709572C7B57CE953B6BAAB30MWHPR1601MB1168_ Content-Type: text/plain; charset="iso-2022-jp" Content-Transfer-Encoding: quoted-printable Correct my previous response: In DRILL-4778, JDK was faster in compilation but generated slower code. Jan= ino was slower in compilation and generate faster code. Your JIRA did not m= ention how was the performance when running generated code. You may want to= test this aspect as well. From: weijie tong Sent: Sunday, July 30, 2017 6:10:12 AM To: dev@drill.apache.org Subject: Which code compiler is better The compile process is long when we have 20 sum or avg expression and the compiler is janino. But if we change the compiler to jdk=1B$B!$=1B(Bwe gain= lower compile process time. It seems jdk compiler is better .If that's tue,why not let jdk be the default one? --_000_MWHPR1601MB1168B709572C7B57CE953B6BAAB30MWHPR1601MB1168_--