Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752114AbbEDFWF (ORCPT ); Mon, 4 May 2015 01:22:05 -0400 Received: from mail-qg0-f53.google.com ([209.85.192.53]:34789 "EHLO mail-qg0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750975AbbEDFWA (ORCPT ); Mon, 4 May 2015 01:22:00 -0400 MIME-Version: 1.0 Date: Mon, 4 May 2015 06:21:59 +0100 Message-ID: Subject: is kernel slower at loading for some hardware ? From: linux cbon To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2001 Lines: 48 Hi, during boot up, I am trying to find where the kernel takes more time to do actions (is slower ?). I looked at dmesg and found some places where it takes more time, but not sure if this is normal : [ 0.070964] smpboot: CPU0: AMD Athlon(tm) 7750 Dual-Core Processor (fam: 10, model: 02, stepping: 03) [ 0.175415] Performance Events: AMD PMU driver. [ 0.248501] NET: Registered protocol family 1 [ 0.248515] pci 0000:00:01.0: MSI quirk detected; subordinate MSI disabled [ 1.878384] pci 0000:01:05.0: Video device with shadowed ROM [ 2.225414] ata3: SATA link down (SStatus 0 SControl 300) [ 2.392196] ata1: softreset failed (device not ready) [ 2.392199] ata1: applying PMP SRST workaround and retrying [ 2.422234] usb 3-1: new low-speed USB device number 2 using ohci-pci [ 2.559072] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 2.695906] hid-generic 0003:04F3:0103.0002: input: USB HID v1.11 Device [HID 04f3:0103] on usb-0000:00:12.0-1/input1 [ 2.882804] tsc: Refined TSC clocksource calibration: 2712.351 MHz [ 3.059684] ata1: softreset failed (device not ready) [ 3.059687] ata1: applying PMP SRST workaround and retrying [ 3.236722] sda: sda1 sda2 [ 3.236880] sd 0:0:0:0: [sda] Attached SCSI disk [ 3.472247] input: ImPS/2 Logitech Wheel Mouse as /devices/platform/i8042/serio1/input/input2 [ 3.475012] md: Waiting for all devices to be available before autodetect [ 3.526543] Freeing unused kernel memory: 796K (ffffffff816a3000 - ffffffff8176a000) [ 3.887420] Switched to clocksource tsc [ 4.953361] random: nonblocking pool is initialized Not sure if it is normal or not...maybe it's just normal behavior or cannot get any faster... Thanks for reading. Cheers -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/