delete app - bottlenecks -

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author	hongbotian <hongbo.tianhongbo@huawei.com>	2015-11-30 03:10:21 -0500
committer	hongbotian <hongbo.tianhongbo@huawei.com>	2015-11-30 03:10:21 -0500
commit	c0b7206652b2852bc574694e7ba07ba1c2acdc00 (patch)
tree	5cb95cb0e19e03610525903df46279df2c3b7eb1 /rubbos/app/apache2/manual/mod/mod_echo.html
parent	b6d3d6e668b793220f2d3af1bc3e828553dc3fe6 (diff)

delete app

Change-Id: Id4c572809969ebe89e946e88063eaed262cff3f2 Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>

Diffstat (limited to 'rubbos/app/apache2/manual/mod/mod_echo.html')

-rw-r--r--

rubbos/app/apache2/manual/mod/mod_echo.html

1 files changed, 0 insertions, 13 deletions

/* * Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA. */ FILE_LICENCE ( GPL2_OR_LATER ); #include <string.h> #include <errno.h> #include <limits.h> #include <assert.h> #include <unistd.h> #include <ipxe/timer.h> #include <ipxe/efi/efi.h> #include <ipxe/efi/Protocol/Cpu.h> /** @file * * iPXE timer API for EFI * */ /** Scale factor to apply to CPU timer 0 * * The timer is scaled down in order to ensure that reasonable values * for "number of ticks" don't exceed the size of an unsigned long. */ #define EFI_TIMER0_SHIFT 12 /** Calibration time */ #define EFI_CALIBRATE_DELAY_MS 1 /** CPU protocol */ static EFI_CPU_ARCH_PROTOCOL *cpu_arch; EFI_REQUIRE_PROTOCOL ( EFI_CPU_ARCH_PROTOCOL, &cpu_arch ); /** * Delay for a fixed number of microseconds * * @v usecs Number of microseconds for which to delay */ static void efi_udelay ( unsigned long usecs ) { EFI_BOOT_SERVICES *bs = efi_systab->BootServices; EFI_STATUS efirc; int rc; if ( ( efirc = bs->Stall ( usecs ) ) != 0 ) { rc = -EEFI ( efirc ); DBG ( "EFI could not delay for %ldus: %s\n", usecs, strerror ( rc ) ); /* Probably screwed */ } } /** * Get current system time in ticks * * @ret ticks Current time, in ticks */ static unsigned long efi_currticks ( void ) { UINT64 time; EFI_STATUS efirc; int rc; /* Read CPU timer 0 (TSC) */ if ( ( efirc = cpu_arch->GetTimerValue ( cpu_arch, 0, &time, NULL ) ) != 0 ) { rc = -EEFI ( efirc ); DBG ( "EFI could not read CPU timer: %s\n", strerror ( rc ) ); /* Probably screwed */ return -1UL; } return ( time >> EFI_TIMER0_SHIFT ); } /** * Get number of ticks per second * * @ret ticks_per_sec Number of ticks per second */ static unsigned long efi_ticks_per_sec ( void ) { static unsigned long ticks_per_sec = 0; /* Calibrate timer, if necessary. EFI does nominally provide * the timer speed via the (optional) TimerPeriod parameter to * the GetTimerValue() call, but it gets the speed slightly * wrong. By up to three orders of magnitude. Not helpful. */ if ( ! ticks_per_sec ) { unsigned long start; unsigned long elapsed; DBG ( "Calibrating EFI timer with a %d ms delay\n", EFI_CALIBRATE_DELAY_MS ); start = currticks(); mdelay ( EFI_CALIBRATE_DELAY_MS ); elapsed = ( currticks() - start ); ticks_per_sec = ( elapsed * ( 1000 / EFI_CALIBRATE_DELAY_MS )); DBG ( "EFI CPU timer calibrated at %ld ticks in %d ms (%ld " "ticks/sec)\n", elapsed, EFI_CALIBRATE_DELAY_MS, ticks_per_sec ); } return ticks_per_sec; } PROVIDE_TIMER ( efi, udelay, efi_udelay ); PROVIDE_TIMER ( efi, currticks, efi_currticks ); PROVIDE_TIMER ( efi, ticks_per_sec, efi_ticks_per_sec );


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