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syuu1228 / ptprcv.c
Last active October 5, 2018 10:29
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <pthread.h>
#include <assert.h>
#include <stdarg.h>
#include <net/if.h>
#include <sys/ioctl.h>
@syuu1228
syuu1228 / ptpsnd.c
Last active October 5, 2018 10:27
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <pthread.h>
#include <assert.h>
#include <stdarg.h>
#include <net/if.h>
#include <sys/ioctl.h>
@syuu1228
syuu1228 / kvm-nvme-passthrough.txt
Last active August 24, 2018 09:34
[syuu@localhost ~]$ lspci
00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller
00:01.0 VGA compatible controller: Red Hat, Inc. QXL paravirtual graphic card (rev 04)
00:02.0 PCI bridge: Red Hat, Inc. QEMU PCIe Root port
00:02.1 PCI bridge: Red Hat, Inc. QEMU PCIe Root port
00:02.2 PCI bridge: Red Hat, Inc. QEMU PCIe Root port
00:02.3 PCI bridge: Red Hat, Inc. QEMU PCIe Root port
00:02.4 PCI bridge: Red Hat, Inc. QEMU PCIe Root port
00:02.5 PCI bridge: Red Hat, Inc. QEMU PCIe Root port
00:1d.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
@syuu1228
syuu1228 / inet_pton_example.c
Last active August 16, 2018 02:47
#include <arpa/inet.h>
#include <stdio.h>
int main(void) {
char buf[128];
struct in_addr addr;
int ret;
scanf("%s", buf);
ret = inet_pton(AF_INET, buf, &addr);
@syuu1228
syuu1228 / measureing_c_program_elapsed_time_using_rdtsc.c
Last active August 15, 2018 07:16
/* https://gist.github.com/syuu1228/e8f649201bed394260b227873faccd12 */
#include "rdtsc.h"
#define LOOP_CNT 1000
int main(void) {
unsigned long long cnt_start, cnt_end;
cnt_start = rdtsc();
for (int i = 0; i < LOOP_CNT; i++) {
// your program
}
@syuu1228
syuu1228 / rdtsc.h
Last active August 15, 2018 07:19
#ifndef RDTSC_H_
#define RDTSC_H_
static inline unsigned long long rdtsc() {
unsigned long long ret;
__asm__ __volatile__ ("cpuid" : : : "rax", "rbx", "rcx", "rdx");
__asm__ __volatile__ ( \
"rdtsc\n\t" \
"shlq $32, %%rdx\n\t" \
@syuu1228
syuu1228 / oel-urllib3.log
Created June 13, 2018 19:59
[clckwrk@ip-172-16-99-109 ~]$ sudo yum install epel-release
Loaded plugins: ulninfo
epel/x86_64/metalink | 20 kB 00:00
epel | 3.2 kB 00:00
ol7_UEKR4 | 1.2 kB 00:00
ol7_addons | 1.2 kB 00:00
ol7_latest | 1.4 kB 00:00
(1/3): epel/x86_64/group_gz | 88 kB 00:00
(2/3): epel/x86_64/primary | 3.5 MB 00:02
(3/3): epel/x86_64/updateinfo | 929 kB 00:02
@syuu1228
syuu1228 / 0001-dist-ami-show-unsupported-instance-type-message-even.patch
Created June 13, 2018 11:12
From 252a9ef0e8ba4f0357c9478a1379ad9dbb25c709 Mon Sep 17 00:00:00 2001
From: Takuya ASADA <syuu@scylladb.com>
Date: Wed, 13 Jun 2018 18:41:36 +0900
Subject: [PATCH scylla] dist/ami: show unsupported instance type message even
scylla_ami_setup is still running
Signed-off-by: Takuya ASADA <syuu@scylladb.com>
---
dist/ami/files/.bash_profile | 31 ++++++++++++++++---------------
1 file changed, 16 insertions(+), 15 deletions(-)
@syuu1228
syuu1228 / yum_install_base.txt
Created April 27, 2018 01:45
$ sudo yum --nogpgcheck --releasever=7 --installroot=/home/ec2-user/scylla/build/installroot install -y @base
読み込んだプラグイン:amazon-id, rhui-lb, search-disabled-repos
epel/x86_64/metalink | 14 kB 00:00
epel | 4.7 kB 00:00
rhui-REGION-client-config-server-7 | 2.9 kB 00:00
https://rhui2-cds02.us-east-1.aws.ce.redhat.com/pulp/repos//content/dist/rhel/rhui/server/7/7/x86_64/os/repodata/repomd.xml: [Errno 14] HTTPS Error 404 - Not Found
他のミラーを試します。
To address this issue please refer to the below knowledge base article
https://access.redhat.com/articles/1320623
@syuu1228
syuu1228 / downgrade-scylla-enterprise-ubuntu2.txt
Created April 11, 2018 16:16
$ sudo apt-get install scylla-enterprise=2017.1.* scylla-enterprise-server=2017.1.* scylla-enterprise-conf=2017.1.* scylla-enterprise-kernel-conf=2017.1.* scylla-enterprise-jmx=2017.1.* scylla-enterprise-tools=2017.1.*
Reading package lists... Done
Building dependency tree
Reading state information... Done
Selected version '2017.1.6-20180312.e6fc79c-ubuntu1' (s3.amazonaws.com [amd64]) for 'scylla-enterprise'
Selected version '2017.1.6-20180312.e6fc79c-ubuntu1' (s3.amazonaws.com [amd64]) for 'scylla-enterprise-server'
Selected version '2017.1.6-20180312.e6fc79c-ubuntu1' (s3.amazonaws.com [amd64]) for 'scylla-enterprise-conf'
Selected version '2017.1.6-20180312.e6fc79c-ubuntu1' (s3.amazonaws.com [amd64]) for 'scylla-enterprise-kernel-conf'
Selected version '2017.1.6-20180312.eb73bef-ubuntu1' (s3.amazonaws.com [all]) for 'scylla-enterprise-jmx'
Selected version '2017.1.6-20180312.ed9506d-ubuntu0' (s3.amazonaws.com [all]) for 'scylla-enterprise-tools'