Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 28 Oct 2000 09:04:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 28 Oct 2000 09:04:32 -0400 Received: from tonib-gw-old.customer.0rbitel.net ([195.24.39.218]:30473 "HELO gateway.izba.bg") by vger.kernel.org with SMTP id ; Sat, 28 Oct 2000 09:04:17 -0400 Date: Sat, 28 Oct 2000 19:04:12 +0300 (EEST) From: To: linux-kernel@vger.kernel.org Subject: PLIP driver in 2.2.xx kernels Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I have a question - Why does the PLIP driver does consume so much CPU ? I tried it today, and when i did ping -s 16000 dst_ip, the kernel consumed about 50% of the CPU time ( /proc/cpuinfo and /proc/interrupts follow). Any ideas ? shtajga:~# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 7 model name : Pentium III (Katmai) stepping : 3 cpu MHz : 548.545 cache size : 512 KB fdiv_bug : no hlt_bug : no sep_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 3 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 psn mmx fxsr xmm bogomips : 1094.45 shtajga:~# cat /proc/interrupts CPU0 0: 32765032 XT-PIC timer 1: 227971 XT-PIC keyboard 2: 0 XT-PIC cascade 3: 42658190 XT-PIC serial 4: 518726307 XT-PIC serial 7: 45966 XT-PIC parport0 8: 1 XT-PIC rtc 9: 15292 XT-PIC eth0 10: 21984776 XT-PIC eth1 11: 1534661 XT-PIC sm200 12: 498413 XT-PIC PS/2 Mouse 13: 1 XT-PIC fpu 14: 18221483 XT-PIC ide0 15: 8 XT-PIC ide1 NMI: 0 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/