Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1b0F7w-0005xz-FT for pgsql-admin@arkaria.postgresql.org; Tue, 10 May 2016 21:23:36 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1b0F7w-0000UK-2O for pgsql-admin@arkaria.postgresql.org; Tue, 10 May 2016 21:23:36 +0000 Received: from makus.postgresql.org ([2001:4800:1501:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1b0F6C-0004aE-Qm for pgsql-admin@postgresql.org; Tue, 10 May 2016 21:21:49 +0000 Received: from mail-eopbgr690081.outbound.protection.outlook.com ([40.107.69.81] helo=na01-by2-obe.outbound.protection.outlook.com) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1b0F68-0002kT-Ir for pgsql-admin@postgresql.org; Tue, 10 May 2016 21:21:47 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=journyx.onmicrosoft.com; s=selector1-journyx-com; h=From:To:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=lqMoSdc/an4pP5S1hpiKgKsgaKCdnt6U99wcplF2EJQ=; b=L/lgRm+n3RMtqs1hcVvkQIoxEavYNd+BRkYICNMWH1ATxKlw5vXl1sNjhFShx60uESew+sFKoj/9vzzlK938C27daDk1KC1XUjieVDxDqcdhLHyCQvSPTDL2zUC1heaKuQUksIXgNPEtKmxkDSTJfMILANtv0zbHD/8oc9mpOts= Received: from BY1PR11MB0390.namprd11.prod.outlook.com (10.162.146.14) by BY1PR11MB0391.namprd11.prod.outlook.com (10.162.146.140) with Microsoft SMTP Server (TLS) id 15.1.492.11; Tue, 10 May 2016 21:21:41 +0000 Received: from BY1PR11MB0390.namprd11.prod.outlook.com ([10.162.146.14]) by BY1PR11MB0390.namprd11.prod.outlook.com ([10.162.146.14]) with mapi id 15.01.0492.016; Tue, 10 May 2016 21:21:41 +0000 From: Scott Whitney To: "Campbell, Lance" , "'pgsql-admin@postgresql.org'" Subject: Re: Memory and Swap Thread-Topic: [ADMIN] Memory and Swap Thread-Index: AdGq+UJaZ1bmQgayQz6jdS9cpsmf+QACK+xM Date: Tue, 10 May 2016 21:21:41 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: illinois.edu; dkim=none (message not signed) header.d=none;illinois.edu; dmarc=none action=none header.from=journyx.com; x-originating-ip: [24.55.4.13] x-ms-office365-filtering-correlation-id: 1ea89c0e-c581-4d74-8e30-08d3791914ae x-microsoft-exchange-diagnostics: 1;BY1PR11MB0391;5:YineRpSRbjzpgA7DtDANEeFKDWr83RilsaZvfvdU9PM0igfPSfL1lynj4NgwJLgmf1VTgTOdCbGAzmBAgBClwu8FXN5i9iwWeCq6x3J0aRmTRKhoG/y9sL5EZLozbq1OhEziDJYzzDaiSdHL94xD6g==;24:PE+3Ilzfu/dq89MGmsoju78F3RYFAnGRy9lSd8tWG8+6xRXF7vY7OAg90EvVoOyFQJTfn78SASrZQgWE385ZcMehcYlCo6ITU924NehL7Rg=;7:kL9xNsCAGTsxDk1Md2wc3z5pC6s/lqCcEeGPB6tqw+SxTRN3NSDYg8+PrcMkQTDISWQwlKPJcm7O7X4uQbcs9wDctuBNIp6zwcFlsaDf5doW1T+CWXfE+KzVSMz9ti8Fk4cijmWkgNvWL5fPxsBFEnsv6jhLmpSil3PvDgq+P7K8YXFmLkvdQ4x24dw8+uSc x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:BY1PR11MB0391; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(6040130)(601004)(2401047)(5005006)(8121501046)(3002001)(10201501046)(6041072)(6043046);SRVR:BY1PR11MB0391;BCL:0;PCL:0;RULEID:;SRVR:BY1PR11MB0391; x-forefront-prvs: 0938781D02 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(6009001)(377454003)(102836003)(6116002)(3846002)(50986999)(122556002)(9686002)(2950100001)(1220700001)(586003)(95246002)(99286002)(15974865002)(2900100001)(81166006)(92566002)(76176999)(54356999)(33646002)(63666004)(11100500001)(8936002)(86362001)(19625215002)(5008740100001)(5002640100001)(2906002)(3660700001)(2171001)(87936001)(3280700002)(66066001)(5004730100002)(189998001)(5001770100001)(107886002)(77096005)(15975445007)(10400500002)(19580395003)(16236675004)(19580405001)(51650200001)(491001);DIR:OUT;SFP:1101;SCL:1;SRVR:BY1PR11MB0391;H:BY1PR11MB0390.namprd11.prod.outlook.com;FPR:;SPF:None;MLV:sfv;LANG:en; spamdiagnosticoutput: 1:23 spamdiagnosticmetadata: NSPM Content-Type: multipart/alternative; boundary="_000_kujignmuy9jg6cbj11u125e31462915289715emailandroidcom_" MIME-Version: 1.0 X-OriginatorOrg: journyx.com X-MS-Exchange-CrossTenant-originalarrivaltime: 10 May 2016 21:21:41.5155 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 83db917a-cb55-44ba-82ef-25aa3e32343f X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY1PR11MB0391 X-Pg-Spam-Score: -1.9 (-) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-admin Precedence: bulk Sender: pgsql-admin-owner@postgresql.org --_000_kujignmuy9jg6cbj11u125e31462915289715emailandroidcom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Swap happens under heavy load. At some point you hit a barrier that caused = things to swap. Using swap in and of itself is not bad, and it is to be exp= ected. Actual SWAPPING (happening all the time) means you're out of RAM, AN= D that's bad. If you would like to talk to me directly about this, let me know. While I a= m not as good on the internals as The Big Brains on this list, I am certain= ly in the top on the IT end of it. (Hi, Greg...you know what you did...) Sent via the Samsung GALAXY S=AE4, an AT&T 4G LTE smartphone -------- Original message -------- From: "Campbell, Lance" Date: 05/10/2016 3:25 PM (GMT-06:00) To: "'pgsql-admin@postgresql.org'" Subject: [ADMIN] Memory and Swap PostgreSQL 9.5.2 Linux Red Hat I have 10 G of memory. Nagios is saying I have 2 G used and 8 G free. Yet my swap is at 1 G. 1) Why is that? 2) Over that past week it has climbed from almost nothing to 1 G. It = is a steady climb. No big jump. Thanks, Lance Journyx, Inc. 7600 Burnet Road #300 Austin, TX 78757 www.journyx.com p 512.834.8888 f 512-834-8858 Do you receive our promotional emails? You can subscribe or unsubscribe to = those emails at http://go.journyx.com/emailPreference/e/4932/714/ --_000_kujignmuy9jg6cbj11u125e31462915289715emailandroidcom_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Swap happens under heavy load. At some point you hit a barrier that ca= used things to swap. Using swap in and of itself is not bad, and it is to b= e expected. Actual SWAPPING (happening all the time) means you're out of RA= M, AND that's bad.

If you would like to talk to me directly about this, let me know. Whil= e I am not as good on the internals as The Big Brains on this list, I am ce= rtainly in the top on the IT end of it.

(Hi, Greg...you know what you did...)



Sent via the Samsung GALAXY S= =AE4, an AT&T 4G LTE smartphone


-------- Original message --------
From: "Campbell, Lance" <lance@illinois.edu>
Date: 05/10/2016 3:25 PM (GMT-06:00)
To: "'pgsql-admin@postgresql.org'" <pgsql-admin@postgresql.org= >
Subject: [ADMIN] Memory and Swap

PostgreSQL 9.5.2

Linux Red Hat

 

I have 10 G of memory.  Nagios is saying I have= 2 G used and 8 G free.

 

Yet my swap is at 1 G. 

 

1)   = ;   Why is that? 

2)   = ;   Over that past week it has climbed from almost nothing to 1 G= .  It is a steady climb.  No big jump.

 

Thanks,

 

Lance



Journyx, Inc.
7600 Burnet Road #300
Austin, TX 78757
www.journyx.com

p 512.834.8888 
f 512-834-8858 

Do you receive our promotional emails? You can subscribe or unsubscrib= e to those emails at http://go.journyx.com/emailPreference/e/4932/714/ = ;
--_000_kujignmuy9jg6cbj11u125e31462915289715emailandroidcom_--