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Optimizing the kernel for VMware

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参考地址： Optimizing the kernel for VMware

今天在vps上编译了一个内核，启动的时候发现死机了。。。
之后再本地测试了一下也是同样的情况，网上搜了一下 这是结果

要问我为何编译内核？ 为了测试下cjktty，经实验效果还是可以的，之后再在这篇文章补充这方面的内容 嗯，先这样吧

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[*] 64-bit kernel (leave blank for x86) 

General Setup ---> 
  [*] Optimize very unlikely/likely branches 

Processor type and features ---> 
  Processor Family (usually Core2/Newer Xeon) 

Bus Options ---> 
  < > PCCard (PCMCIA/Cardbus) support 

Networking support ---> 
  [ ] Amateur Radio support 
  [ ] Wireless (only if you plan on using nat EXCLUSIVELY) 

Device Drivers ---> 
  Generic Driver Options 
    [*] Maintain a devtmpfs filesystem to mount at /dev 

  Misc Devices ---> 
    [*] VMware Balloon Driver (manages memory between VM and host) 
    [*] VMware VMCI Driver (Virtual Machine Communication Interface - low-latency access to host memory bus) 

  SCSI device support ---> 
    [*] SCSI low-level drivers ---> 
      <*> VMware PVSCSI driver support (high throughput storage adapter) 

  [*] Fusion MPT device support ---> 
    <*> Fusion MPT ScsiHost drivers for SPI 

  [*] Network device support ---> 
    [*] Ethernet driver support ---> 
      (disable every driver but this) 
      [*] AMD Devices 
        <*> AMD PCNet32 PCI support 
    [ ] Wireless LAN (ONLY if you disabled Wireless networking support above) 
    < > VMware VMXNET3 ethernet driver (PCNet32 is more than enough for most use cases - enable this only if you have spare cpu cycles to burn) 

  Graphics support ---> 
    <*> Direct Rendering Manager 
    < > Intel 8xx/9xx/G3x/G4x/HD Graphics 
    <*> DRM driver for VMware Virtual GPU 
      [*] Enable framebuffer console support under vmwgfx by default 
    <*> Support for frame buffer devices 

    Console display driver support ---> 
      <*> Framebuffer Console support 

  Sound card support ---> 
    <*> Advanced Linux Sound Architecture ---> 
      [*] PCI sound devices 
        <*> (Creative) Ensoniq AudioPCI 1371/1373 
        < > Intel HD Audio 

  File systems ---> 
    (enable only those you anticipate using) 
    <*> Second extended fs support 
    <*> The Extended 4 (ext4) filesystem 
    <*> XFS filesystem support 
    <*> Btrfs filesystem Unstable disk format 

    Pseudo filesystems ---> 
      [*] Tmpfs virtual memory file system support (former shm fs) 
        [*] Tmpfs POSIX Access Control Lists

对于网卡，之前看一些blog都说使用 pcnet32 的驱动就可以了，我这里使用的是intel的 e1000 的驱动，其实intel的这个驱动也是很常见的，vmware和vobx都会有用到。其他方面基本没啥特殊情况了，毕竟只是vps，没啥必要做什么优化(况且我也不会 -_-!)
为了保证基于kvm的虚拟机能够正常网络通信，最好内核启用virtio

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Processor type and features  --->
    [*] Linux guest support --->
        [*] Enable Paravirtualization code
        [*] KVM Guest support (including kvmclock)
Device Drivers  --->
    Virtio drivers  --->
        <*>   PCI driver for virtio devices
    [*] Block devices  --->
        <*>   Virtio block driver
    [*] Network device support  --->
        <*>   Virtio network driver
    SCSI device support  --->
        [*] SCSI low-level drivers  --->
            [*]   virtio-scsi support

有关cjktty的内容请关注 linux-cjktty
同时 MicroCai 在IBM上有篇文章介绍了这个项目

使用4.9内核的bbr 编译内核的时候搜索bbr,把两个选项勾选,/etc/sysctl.conf里面加上两句:

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net.core.default_qdisc=fq
net.ipv4.tcp_congestion_control=bbr

使用IPsec可能需要这下

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Networking  --->
 Networking options  --->
   Transformation user configuration interface [CONFIG_XFRM_USER]
   PF_KEY sockets [CONFIG_NET_KEY]
   TCP/IP networking [CONFIG_INET]
     IP: advanced router [CONFIG_IP_ADVANCED_ROUTER]
     IP: policy routing [CONFIG_IP_MULTIPLE_TABLES]
     IP: AH transformation [CONFIG_INET_AH]
     IP: ESP transformation [CONFIG_INET_ESP]
     IP: IPComp transformation [CONFIG_INET_IPCOMP]
     IP: IPsec transport mode [CONFIG_INET_XFRM_MODE_TRANSPORT]
     IP: IPsec tunnel mode [CONFIG_INET_XFRM_MODE_TUNNEL]
     IP: IPsec BEET mode [CONFIG_INET_XFRM_MODE_BEET]
   The IPv6 protocol ---> [CONFIG_IPV6]
     IPv6: AH transformation [CONFIG_INET6_AH]
     IPv6: ESP transformation [CONFIG_INET6_ESP]
     IPv6: IPComp transformation [CONFIG_INET6_IPCOMP]
     IPv6: IPsec transport mode [CONFIG_INET6_XFRM_MODE_TRANSPORT]
     IPv6: IPsec tunnel mode [CONFIG_INET6_XFRM_MODE_TUNNEL]
     IPv6: IPsec BEET mode [CONFIG_INET6_XFRM_MODE_BEET]
     IPv6: Multiple Routing Tables  [CONFIG_IPV6_MULTIPLE_TABLES]
   Network packet filtering framework (Netfilter) ---> [CONFIG_NETFILTER]
     Core Netfilter Configuration --->
       Netfilter Xtables support [CONFIG_NETFILTER_XTABLES]
         IPsec "policy" match support [CONFIG_NETFILTER_XT_MATCH_POLICY]
Cryptographic API
  Select algorithms you want to use...
  Encrypted Chain IV Generator [CRYPTO_ECHAINIV]