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#################################################################### overdrive use estuary kernel #################################################################### 1.overdrive启动报错问题 思路： 1、estuary kernel修改cmdline，看能否正常开机 2、用linaro配置项测试，看能否开机。 3、裁剪estuary kernel配置项，看能否开机 测试： 1.cmdline add acpi=force boot success.

步骤： 1.copy estuary's kernel Image into boot partition: mount /dev/sda1 sda cp Image root/sda/boot/Image

2.add boot menu to grub,note to add "acpi=force" into cmdline

3.reboot

#################################################################### linux container enable in estuary #################################################################### ubuntu: 1.install packages apt-get install bridge-utils apt-get install cloud-utils apt-get install lxc

2.use "brctl addbr lxcbr0" to add bridge

3.use lxc-checkconfig & lxc-create & lxc-start test: use "CONFIG=xxx/.config lxc-checkconfig" check miss configs,and the checkpoint-restore config is not mandatory,so this config miss is ok. lxc-create -n ubuntu -t ubuntu-cloud -- -r vivid -T http://192.168.1.107/ubuntu-15.04-server-cloudimg-arm64-root.tar.gz

centos: can't find lxc package to direct install,so build lxc source code,then install. 1.install packages yum -y install bridge-utils yum -y install gcc* yum -y install cloud-utils yum -y install libtool yum -y install wget yum -y install debootstrap* yum -y install libcap-devel

2.get code and build lxc: git clone git://github.com/lxc/lxc -b master

cd lxc ./autogen.sh ./configure --enable-tests make install

modify /usr/share/lxc/templates/lxc-ubuntu-cloud: mask this line #type ubuntu-cloudimg-query

2.use "brctl addbr lxcbr0" to add bridge

3.use lxc-checkconfig & lxc-create & lxc-start test: if can't find shared library,reboot,then test again. use "CONFIG=xxx/.config lxc-checkconfig" check miss configs,and the checkpoint-restore config is not mandatory,so this config miss is ok. lxc-create -n ubuntu -t ubuntu-cloud -- -r vivid -T http://192.168.1.107/ubuntu-15.04-server-cloudimg-arm64-root.tar.gz

#################################################################### overdrive grub #################################################################### grub cmdline: use set to list all env,eg: prefix=(hd0,gpt1)/EFI/BOOT prefix is the direct of grub.cfg by set prefix=(hd0,gpt1)/xxx(the direct of grub.cfg),and then "normal",it will boot success.

overdrive: [root@cent-est sda]# tree . ├── EFI │   └── BOOT │   ├── bootaa64.efi │   └── grub.cfg ├── Image ├── mini-rootfs-arm64.cpio.gz └── startup.nsh

[root@cent-est sda]# cat startup.nsh bootaa64

[root@CentOS ~]# efibootmgr [ 100.758105] efi_call_virt_check_flags: 71 callbacks suppressed [ 100.763947] efi: [Firmware Bug]: IRQ flags corrupted (0x00000140=>0x00000100) by EFI get_variable [ 100.772879] efi: [Firmware Bug]: IRQ flags corrupted (0x00000140=>0x00000100) by EFI get_variable [ 100.781803] efi: [Firmware Bug]: IRQ flags corrupted (0x00000140=>0x00000100) by EFI get_variable [ 100.790725] efi: [Firmware Bug]: IRQ flags corrupted (0x00000140=>0x00000100) by EFI get_variable [ 100.799647] efi: [Firmware Bug]: IRQ flags corrupted (0x00000140=>0x00000100) by EFI get_variable [ 100.808567] efi: [Firmware Bug]: IRQ flags corrupted (0x00000140=>0x00000100) by EFI get_variable [ 100.817624] efi: [Firmware Bug]: IRQ flags corrupted (0x00000140=>0x00000100) by EFI get_variable [ 100.826661] efi: [Firmware Bug]: IRQ flags corrupted (0x00000140=>0x00000100) by EFI get_variable [ 100.835697] efi: [Firmware Bug]: IRQ flags corrupted (0x00000140=>0x00000100) by EFI get_variable [ 100.844738] efi: [Firmware Bug]: IRQ flags corrupted (0x00000140=>0x00000100) by EFI get_variable BootCurrent: 0005 Timeout: 5 seconds BootOrder: 0005,0006,0004,0001,0000 Boot0000* opensuse-tumbleweed-arm-jeos-efi Boot0001* Grub Boot0004 UEFI: Built-in EFI Shell Boot0005* UEFI: Network Port00 Boot0006* UEFI: Network Port01

grub.cfg: menuentry 'estuary mini' --id 'estuary_mini' { search --no-floppy --fs-uuid --set=root 85F9-AF34 linux /Image plymouth.enable=0 console=ttyAMA0,115200n8
initrd /mini-rootfs-arm64.cpio.gz } menuentry 'centos-estuary nfs' --id 'centos_nfs' { search --no-floppy --fs-uuid --set=root 85F9-AF34 linux /Image plymouth.enable=0 console=ttyAMA0,115200n8 root=/dev/nfs rw nfsroot=192.168.1.107:/home/hisilicon/ftp/fengchunsong/Centos,nfsvers=3 ip=dhcp } menuentry 'centos-estuary' --id 'centos' { search --no-floppy --fs-uuid --set=root 85F9-AF34 linux /Image root=PARTUUID=f62ab48e-b73e-485a-a335-50bb5ae50046 plymouth.enable=0 console=ttyAMA0,115200n8 rootwait rootfstype=ext4 rw }

#################################################################### rp1612版本资料 #################################################################### １，uefi仓库和编译方法 编译方法： $ git clone https://github.com/open-estuary/uefi.git $ git checkout rp1612 $ git submodule init $ git git submodule update $ ./uefi-tools/uefi-build.sh -c LinaroPkg/platforms.config d03 d05

2, kernel 仓库和编译方法 https://github.com/open-estuary/kbase 验证分支d0x-integration https://github.com/open-estuary/rpk https://github.com/hisilicon/kernel-dev

$ make ARCH=arm64 defconfig $ make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- Image -j80

３, caliper仓库 https://github.com/xin3liang/caliper 分支basic-hardware-function 文档：http://open-estuary.org/caliper-benchmarking/ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

４，参考测试cases 请参看附件 参考plinth 发布的文档，ｈｉ团队：处理器基础软件 linaro tests: https://git.linaro.org/qa/test-definitions.git/

#################################################################### improve network speed #################################################################### /etc/sysconfig/network-scripts/ifcfg-eth2: NAME=eth2 DEVICE=eth2 ONBOOT=yes BOOTPROTO=static NM_CONTROLLED=yes BOOTPROTO=static IPADDR=192.168.12.11 NETMASK=255.255.255.0 GATEWAY=192.168.12.1

should not contain the strings mask with #

Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)

TYPE=Ethernet #网卡类型 DEVICE=eth0 #网卡接口名称 ONBOOT=yes #系统启动时是否自动加载 BOOTPROTO=static #启用地址协议 --static:静态协议 --bootp协议 --dhcp协议 IPADDR=192.168.1.11 #网卡IP地址 NETMASK=255.255.255.0 #网卡网络地址 GATEWAY=192.168.1.1 #网卡网关地址 DNS1=10.203.104.41 #网卡DNS地址 HWADDR=00:0C:29:13:5D:74 #网卡设备MAC地址 BROADCAST=192.168.1.255 #网卡广播地址

mind:

1.use 4.7 kernel test,should be ok iperf: 0.0-100.0 sec 110 GBytes 9.41 Gbits/sec

2.use 4.9 with 4.7config:test 5.6Gbps

3.use 4.9 with 4.7config and hns [root@CentOS ~]# iperf -s -w 256k

Server listening on TCP port 5001 TCP window size: 448 KByte (WARNING: requested 256 KByte)

[ 4] local 192.168.12.12 port 5001 connected with 192.168.12.11 port 54368 [ ID] Interval Transfer Bandwidth [ 4] 0.0-21.8 sec 23.8 GBytes 9.39 Gbits/sec �[root@CentOS ~]# systemctl start irqbalance.service [root@CentOS ~]# iperf -s -w 256k

Server listening on TCP port 5001 TCP window size: 448 KByte (WARNING: requested 256 KByte)

[ 4] local 192.168.12.12 port 5001 connected with 192.168.12.11 port 54370 [ ID] Interval Transfer Bandwidth [ 4] 0.0-100.0 sec 73.2 GBytes 6.29 Gbits/sec

after few minutes with irqbalance: 0.0-11.7 sec 12.8 GBytes 9.39 Gbits/sec

4.estuary_defconfig without crypto and secure options iperf is not ok,qperf is ok [root@CentOS ~]# iperf -s -w 256k

Server listening on TCP port 5001 TCP window size: 448 KByte (WARNING: requested 256 KByte)

[ 4] local 192.168.12.11 port 5001 connected with 192.168.12.12 port 58976 [ ID] Interval Transfer Bandwidth [ 4] 0.0-10.0 sec 7.64 GBytes 6.56 Gbits/sec [ 5] local 192.168.12.11 port 5001 connected with 192.168.12.12 port 58978 [ 5] 0.0-10.0 sec 7.61 GBytes 6.54 Gbits/sec [ 4] local 192.168.12.11 port 5001 connected with 192.168.12.12 port 58980 [ 4] 0.0-10.0 sec 7.67 GBytes 6.59 Gbits/sec [ 5] local 192.168.12.11 port 5001 connected with 192.168.12.12 port 58982 [ 5] 0.0-10.0 sec 7.73 GBytes 6.63 Gbits/sec [ 4] local 192.168.12.11 port 5001 connected with 192.168.12.12 port 58984 [ 4] 0.0-10.0 sec 8.17 GBytes 7.01 Gbits/sec [ 5] local 192.168.12.11 port 5001 connected with 192.168.12.12 port 58986 [ 5] 0.0-10.0 sec 8.23 GBytes 7.07 Gbits/sec

5.estuary_defconfig then use zxj private config iperf not ok

6.common mini config should be ok iperf ok qperf min ng,big ok netperf ok

7.if common is ok,then use common config as base; if common not ok,then use zxjallconfig as base. check estuary configs,try to find add which configs will cause iperf low performance.

1).add estuary all test,estuary and zxj diff,use zxj diff. iperf/qperf ng netperf ok

2).add estuary 1-1470 test,estuary and zxj diff,use zxj diff. iperf/qperf ng netperf ng 2.1).add estuary 1-720 test,estuary and zxj diff,use zxj diff. iperf/qperf ng netperf ng 2.1.1).add estuary 1-358 test,estuary and zxj diff,use zxj diff. iperf/qperf ng netperf ng 2.1.2).add estuary 359-720 test,estuary and zxj diff,use zxj diff. iperf/qperf ng netperf ok

2.2).add estuary 721-1470 test,estuary and zxj diff,use zxj diff. iperf/qperf ng netperf better 3).add estuary 1471-2994 test,estuary and zxj diff,use zxj diff. iperf/qperf ng netperf ok

  1. zxj: iperf:ok qperf:ok netperf:ok ================================================================
  2. est1471-2294:--ok iperf:ok qperf:low netperf:ok ================================================================
  3. est1-1470: iperf:ng qperf:ok netperf:ng ================================================================ 2.2 est705-1470:--ok iperf:ok qperf:ok netperf:ok ================================================================ 2.1 est1-704: iperf:ng qperf:ok netperf:ok ================================================================ 2.1.2 est351-704:--ok iperf:ok qperf:ok netperf:ok ================================================================ 2.1.1 est1-350: iperf:ng qperf:ok netperf:ng ================================================================ 2.1.1.1 est1-175: iperf:ng qperf:low netperf:low ================================================================ 2.1.1.2 est176-350:--ok iperf: ok qperf: ok netperf:ok ================================================================ 2.1.1.1.1 est1-87: iperf: ok qperf: ok low netperf: ok

2.1.1.1.1.1 est1-41: iperf: ok qperf: ok netperf: ok 2.1.1.1.1.2 est42-87: iperf: ok qperf: ok netperf: ok

2.1.1.1.1 est88-175: iperf: ok low qperf: ok low netperf: ok

4K page iperf: ok qperf: ok netperf: ok

================================================================ 3. est1-175 64k-->4k: iperf: ok qperf: ok netperf:

iperf server: 52.76% +8.89% [kernel.kallsyms] [k] __arch_copy_to_user 3.59% +0.07% [kernel.kallsyms] [k] hns_nic_select_queue 3.31% -2.91% [kernel.kallsyms] [k] finish_task_switch 3.05% -1.20% [kernel.kallsyms] [k] skb_copy_datagram_iter 2.61% +0.11% [kernel.kallsyms] [k] skb_release_data 1.86% -0.83% [kernel.kallsyms] [k] copy_page_to_iter 1.86% -0.57% [kernel.kallsyms] [k] tcp_gro_receive 1.77% +0.07% [kernel.kallsyms] [k] __free_pages_ok 1.72% -0.77% [kernel.kallsyms] [k] hns_nic_reuse_page.isra.49 1.63% -0.37% [kernel.kallsyms] [k] __free_page_frag 1.42% -0.39% [kernel.kallsyms] [k] inet_gro_receive 1.18% -0.28% [kernel.kallsyms] [k] skb_gro_receive 1.11% +0.13% [kernel.kallsyms] [k] hns_nic_net_xmit_hw

zdc: 26.79% +4.25% [kernel.kallsyms] [k] __copy_to_user 7.03% -2.13% [kernel.kallsyms] [k] hns_nic_rx_poll_one 6.83% -1.07% [kernel.kallsyms] [k] tcp_gro_receive 5.32% -0.46% [kernel.kallsyms] [k] __free_page_frag 5.10% -0.55% [kernel.kallsyms] [k] inet_gro_receive 4.67% -0.50% [kernel.kallsyms] [k] skb_gro_receive 3.39% -0.09% [kernel.kallsyms] [k] hns_nic_reuse_page.isra.49 3.09% -0.39% [kernel.kallsyms] [k] do_csum 3.00% -1.11% [kernel.kallsyms] [k] dev_gro_receive 2.77% -0.25% [kernel.kallsyms] [k] kmem_cache_alloc 2.25% +0.15% [kernel.kallsyms] [k] skb_release_data 2.23% -0.31% [kernel.kallsyms] [k] kmem_cache_free 2.02% -0.22% [kernel.kallsyms] [k] __build_skb

iperf client: 69.08% +1.62% [kernel.kallsyms] [k] __arch_copy_from_user 3.33% +0.16% [kernel.kallsyms] [k] get_page_from_freelist 2.57% -0.21% [kernel.kallsyms] [k] tcp_sendmsg 1.59% +0.03% [kernel.kallsyms] [k] hns_nic_select_queue 1.14% +0.12% [kernel.kallsyms] [k] skb_page_frag_refill 0.97% -0.05% [kernel.kallsyms] [k] copy_from_iter 0.93% +0.02% [kernel.kallsyms] [k] kmem_cache_alloc_node 0.91% -0.09% [kernel.kallsyms] [k] __alloc_skb 0.87% -0.02% [kernel.kallsyms] [k] hns_nic_net_xmit_hw 0.80% -0.01% [kernel.kallsyms] [k] __free_pages_ok 0.74% -0.01% [kernel.kallsyms] [k] __kmalloc_node_track_caller 0.67% -0.36% [kernel.kallsyms] [k] __do_softirq 0.58% -0.01% [kernel.kallsyms] [k] tcp_write_xmit 0.52% +0.05% [kernel.kallsyms] [k] finish_task_switch 0.52% -0.04% [kernel.kallsyms] [k] tcp_ack zdc: 80.16% -1.17% [kernel.kallsyms] [k] __copy_from_user 2.96% -0.18% [kernel.kallsyms] [k] tcp_sendmsg 1.22% +0.00% [kernel.kallsyms] [k] finish_task_switch 1.22% -0.18% [kernel.kallsyms] [k] copy_from_iter 1.03% +0.10% [kernel.kallsyms] [k] kmem_cache_alloc_node 0.96% +0.01% [kernel.kallsyms] [k] get_page_from_freelist 0.87% +0.01% [kernel.kallsyms] [k] __alloc_skb 0.66% -0.02% [kernel.kallsyms] [k] skb_page_frag_refill 0.63% +0.03% [kernel.kallsyms] [k] __kmalloc_node_track_caller 0.62% +0.19% [kernel.kallsyms] [k] hns_nic_select_queue

qperf server: 10.01% -0.06% [kernel.kallsyms] [k] __arch_copy_to_user 8.48% +0.23% [kernel.kallsyms] [k] __local_bh_enable_ip 7.18% +0.06% libc-2.17.so [.] 0x00000000000a4c54 6.33% +0.06% [kernel.kallsyms] [k] _raw_spin_lock_bh 5.48% +0.47% [kernel.kallsyms] [k] skb_copy_datagram_iter 3.96% -0.02% [kernel.kallsyms] [k] tcp_recvmsg 3.80% +0.04% [kernel.kallsyms] [k] el0_svc_naked 3.00% -0.02% [kernel.kallsyms] [k] sock_read_iter 2.90% -0.02% [kernel.kallsyms] [k] __audit_syscall_exit 2.83% -0.02% [kernel.kallsyms] [k] __vfs_read 2.55% +0.12% [kernel.kallsyms] [k] tcp_cleanup_rbuf 2.19% -0.10% [kernel.kallsyms] [k] fsnotify 2.08% +0.11% [kernel.kallsyms] [k] copy_page_to_iter

1: 13.40% -1.48% [kernel.kallsyms] [k] __local_bh_enable_ip 12.89% -0.14% libc-2.17.so [.] 0x00000000000cbda0 11.08% -0.02% [kernel.kallsyms] [k] _raw_spin_lock_bh 7.58% +0.15% [kernel.kallsyms] [k] tcp_cleanup_rbuf 7.03% -0.49% [kernel.kallsyms] [k] tcp_recvmsg 5.96% +0.01% [kernel.kallsyms] [k] el0_svc_naked 3.79% -0.32% [kernel.kallsyms] [k] fsnotify 3.71% -0.37% [kernel.kallsyms] [k] __audit_syscall_exit 3.67% +1.02% [kernel.kallsyms] [k] sock_read_iter 3.35% +0.06% [kernel.kallsyms] [k] __vfs_read 2.54% +0.98% [kernel.kallsyms] [k] inet_recvmsg 2.08% -0.44% [kernel.kallsyms] [k] copy_page_to_iter

1 estall:1.58 11.17% -0.28% libc-2.17.so [.] 0x00000000000cbda0 10.12% +0.25% [kernel.kallsyms] [k] __local_bh_enable_ip 8.05% -0.86% [kernel.kallsyms] [k] _raw_spin_lock_bh 7.07% +0.63% [kernel.kallsyms] [k] __check_object_size 5.29% +0.30% [kernel.kallsyms] [k] el0_svc_naked 4.01% +0.98% [kernel.kallsyms] [k] tcp_recvmsg 3.97% +0.41% [kernel.kallsyms] [k] __vfs_read 3.31% +0.12% [kernel.kallsyms] [k] __arch_copy_to_user 3.27% +0.00% [kernel.kallsyms] [k] __audit_syscall_exit 3.18% -0.35% [kernel.kallsyms] [k] fsnotify 2.77% +0.85% [kernel.kallsyms] [k] sock_read_iter 2.74% +0.24% [kernel.kallsyms] [k] tcp_cleanup_rbuf 2.68% +0.31% [kernel.kallsyms] [k] copy_page_to_iter 2.60% -0.06% [kernel.kallsyms] [k] security_socket_recvmsg 2.54% -1.62% [kernel.kallsyms] [k] memblock_is_map_memory 2.45% -0.28% [kernel.kallsyms] [k] lock_sock_nested

2: 12.75% -0.43% libc-2.17.so [.] 0x00000000000cbda0 11.92% +0.95% [kernel.kallsyms] [k] __local_bh_enable_ip 11.07% +0.44% [kernel.kallsyms] [k] _raw_spin_lock_bh 7.74% -1.05% [kernel.kallsyms] [k] tcp_cleanup_rbuf 6.54% -0.24% [kernel.kallsyms] [k] tcp_recvmsg 5.97% +0.17% [kernel.kallsyms] [k] el0_svc_naked 4.69% -0.37% [kernel.kallsyms] [k] sock_read_iter 3.52% -1.04% [kernel.kallsyms] [k] inet_recvmsg 3.47% -0.21% [kernel.kallsyms] [k] fsnotify 3.40% -0.07% [kernel.kallsyms] [k] __vfs_read 3.33% +0.21% [kernel.kallsyms] [k] __audit_syscall_exit

qperf client: 9.33% +0.24% [kernel.kallsyms] [k] __local_bh_enable_ip 8.10% +0.30% [kernel.kallsyms] [k] tcp_sendmsg 8.06% -0.12% [kernel.kallsyms] [k] _raw_spin_lock_bh 8.01% -0.80% [kernel.kallsyms] [k] __arch_copy_from_user 6.39% +0.26% libc-2.17.so [.] 0x000000000007ab2c 4.87% -0.17% [kernel.kallsyms] [k] __audit_syscall_exit 4.11% -0.11% [kernel.kallsyms] [k] el0_svc_naked 3.61% +0.08% [kernel.kallsyms] [k] tcp_write_xmit 3.28% +0.05% [kernel.kallsyms] [k] copy_from_iter 2.80% +0.24% [kernel.kallsyms] [k] __vfs_write 2.24% +0.08% [kernel.kallsyms] [k] sock_write_iter 2.19% +0.08% [kernel.kallsyms] [k] lock_sock_nested 1.96% +0.01% [kernel.kallsyms] [k] tcp_push

1: 1.92 13.93% -0.65% [kernel.kallsyms] [k] _raw_spin_lock_bh 11.95% +0.47% libc-2.17.so [.] 0x00000000000cbe60 11.47% -0.81% [kernel.kallsyms] [k] __local_bh_enable_ip 7.39% +0.41% [kernel.kallsyms] [k] tcp_write_xmit 4.75% +0.58% [kernel.kallsyms] [k] el0_svc_naked 4.63% -0.70% [kernel.kallsyms] [k] tcp_push 4.47% -0.76% [kernel.kallsyms] [k] tcp_sendmsg 3.93% -0.34% [kernel.kallsyms] [k] __audit_syscall_exit 3.03% +0.33% [kernel.kallsyms] [k] lock_sock_nested 2.80% -0.75% [kernel.kallsyms] [k] vfs_write 2.57% -0.57% [kernel.kallsyms] [k] __vfs_write 2.33% +1.23% [kernel.kallsyms] [k] copy_from_iter 2.19% +0.10% [kernel.kallsyms] [k] unroll_tree_refs 2.06% -0.15% [kernel.kallsyms] [k] inet_sendmsg 1.87% -0.29% [kernel.kallsyms] [k] __tcp_push_pending_frames 1.67% +0.45% [kernel.kallsyms] [k] sock_write_iter 1.61% +0.45% [kernel.kallsyms] [k] release_sock 1.59% +0.32% [kernel.kallsyms] [k] syscall_trace_exit 1.27% +0.03% [kernel.kallsyms] [k] ret_to_user

ubuntu:1.86 13.21% +1.22% [kernel.kallsyms] [k] _raw_spin_lock_bh 12.18% +0.02% [kernel.kallsyms] [k] __local_bh_enable_ip 11.65% +0.42% libc-2.23.so [.] 0x00000000000ba2c0 9.13% +0.24% [kernel.kallsyms] [k] tcp_sendmsg 7.35% -0.07% [kernel.kallsyms] [k] tcp_write_xmit 6.84% +0.39% [kernel.kallsyms] [k] copy_from_iter 5.61% -0.05% [kernel.kallsyms] [k] el0_svc_naked 3.16% +0.05% [kernel.kallsyms] [k] tcp_push 3.14% -1.04% [kernel.kallsyms] [k] lock_sock_nested 2.57% -0.72% [kernel.kallsyms] [k] fsnotify 1.79% -0.46% [kernel.kallsyms] [k] __arch_copy_from_user 1.78% +0.05% [kernel.kallsyms] [k] __tcp_push_pending_frames 1.74% -0.09% [kernel.kallsyms] [k] release_sock 1.73% +0.09% [kernel.kallsyms] [k] sock_write_iter

1 estall:1.54 10.87% -1.87% libc-2.17.so [.] 0x00000000000cbe60 9.19% +0.54% [kernel.kallsyms] [k] tcp_sendmsg 8.71% +0.73% [kernel.kallsyms] [k] __local_bh_enable_ip 7.23% -0.45% [kernel.kallsyms] [k] _raw_spin_lock_bh 6.85% -0.00% [kernel.kallsyms] [k] __check_object_size 4.73% -0.22% [kernel.kallsyms] [k] tcp_write_xmit 3.90% -0.14% [kernel.kallsyms] [k] __arch_copy_from_user 3.63% -0.05% [kernel.kallsyms] [k] copy_from_iter 3.41% +0.33% [kernel.kallsyms] [k] el0_svc_naked 3.18% -0.33% [kernel.kallsyms] [k] __vfs_write 2.77% -0.40% [kernel.kallsyms] [k] memblock_is_map_memory 2.45% +1.07% [kernel.kallsyms] [k] __audit_syscall_exit 2.45% -0.54% [kernel.kallsyms] [k] lock_sock_nested 2.42% +0.09% [kernel.kallsyms] [k] sock_write_iter

2: 3.84 11.96% +1.04% [ker 3.84nel.kallsyms] [k] _raw_spin_lock_bh 10.99% -0.84% [kernel.kallsyms] [k] __local_bh_enable_ip 10.20% +1.83% libc-2.17.so [.] 0x00000000000cbe60 6.84% -2.94% [kernel.kallsyms] [k] __audit_syscall_exit 6.47% +2.08% [kernel.kallsyms] [k] tcp_write_xmit 5.95% -0.87% [kernel.kallsyms] [k] tcp_sendmsg 5.36% -2.85% [kernel.kallsyms] [k] __vfs_write 5.28% -0.36% [kernel.kallsyms] [k] tcp_push 4.60% +0.92% [kernel.kallsyms] [k] el0_svc_naked 4.18% -1.47% [kernel.kallsyms] [k] vfs_write 2.02% +0.15% [kernel.kallsyms] [k] release_sock

#################################################################### single level: [root@CentOS ~]# systemctl list-units --type=service UNIT LOAD ACTIVE SUB DESCRIPTION kmod-static-nodes.service loaded active exited Create list of required stat rescue.service loaded active running Rescue Shell rhel-readonly.service loaded active exited Configure read-only root sup systemd-journal-flush.service loaded active exited Flush Journal to Persisten systemd-journald.service loaded active running Journal Service systemd-random-seed.service loaded active exited Load/Save Random Seed systemd-sysctl.service loaded active exited Apply Kernel Variables systemd-tmpfiles-setup-dev.service loaded active exited Create Static Device ● systemd-tmpfiles-setup.service loaded failed failed Create Volatile Files and systemd-udev-trigger.service loaded active exited udev Coldplug all Devices systemd-udevd.service loaded active running udev Kernel Device Manager systemd-update-utmp.service loaded active exited Update UTMP about System Boo systemd-vconsole-setup.service loaded active exited Setup Virtual Console

#################################################################### update kernel and modules #################################################################### mount /dev/sda1 /mnt rm -f /mnt/Image_dbg

rm -rf /lib/modules/4.9* rm -rf /lib/firmware

cp out/binary/Image /mnt/Image_dbg cp out/modules/lib/firmware /lib/ -a cp out/modules/lib/modules/* /lib/modules -a

ll /mnt/Image_* ls /lib/firmware ls /lib/modules/ rm -rf out sync

#################################################################### CMA: #################################################################### 1.don't set cma at cmdline: D05 use 0-1G空间，申请512失败, D03 use 2-3G空间，申请成功.

chunsong@fengchunsong-ThinkPad-T420:$ grep -rn "cma: Reserved" D05 16:[ 0.000000] cma: Reserved 128 MiB at 0x0000000029800000 17:[ 0.000000] cma: Reserved 256 MiB at 0x0000000021800000 chunsong@fengchunsong-ThinkPad-T420:$ grep -rn "cma: Reserved" D03 3629:[ 0.000000] cma: Reserved 512 MiB at 0x0000002fe0000000 4492:[ 0.000000] cma: Reserved 512 MiB at 0x0000002fe0000000 4593:[ 0.000000] cma: Reserved 512 MiB at 0x0000002fe0000000 7945:[ 0.000000] cma: Reserved 512 MiB at 0x0000002fe0000000 8809:[ 0.000000] cma: Reserved 512 MiB at 0x0000002fe0000000 8932:[ 0.000000] cma: Reserved 512 MiB at 0x0000002fe0000000

D03: [ 0.000000] cma: Reserved 256 MiB at 0x0000000021c00000 00026000-31c0ffff : System RAM

D05: [ 0.000000] cma: Reserved 256 MiB at 0x0000000021800000 00026000-31aaffff : System RAM

D05 D03 fail ok fail ok D05+82599:-2016 CmaTotal: 262144 kB CmaFree: 244192 kB

D05: CmaTotal: 262144 kB CmaFree: 246208 kB

D03: CmaTotal: 262144 kB CmaFree: 254180 kB

4488 1991