CRIU

Changes

Comparison to other CR projects (edit)

Revision as of 13:58, 11 July 2013

18,396 bytes removed ,  13:58, 11 July 2013
Table style fix
Line 22: Line 22:       −
{| style="border-spacing:0;"
+
{| class="wikitable sortable"
−
| style="border:1pt solid #000000;padding:0.176cm;"|
  −
| style="border:1pt solid #000000;padding:0.176cm;"| CRIU
  −
| style="border:1pt solid #000000;padding:0.176cm;"| DMTCP
  −
| style="border:1pt solid #000000;padding:0.176cm;"| BLCR
  −
 
   
|-
 
|-
−
| style="background-color:#dc2300;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
!
−
| style="background-color:#dc2300;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
! CRIU
−
| style="background-color:#dc2300;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
! DMTCP
−
| style="background-color:#dc2300;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
! BLCR
    
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| arch
+
| Arch
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| x86_64, ARM
+
| x86_64, ARM
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| x86, x86_64, ARM
+
| x86, x86_64, ARM
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| x86,x86_64,PPC/PPC64,ARM
+
| x86, x86_64, PPC/PPC64, ARM
    
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| OS
+
| OS
−
| colspan="3"  style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| <center>Linux</center>
+
| Linux
−
 
+
| Linux
−
|-
+
| Linux
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| modified kernel
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes, but only for some extra features.
  −
 
  −
All unnecessary features are already in new kernel versions
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no, module can be simply modprobed
  −
 
  −
 
  −
problems with installation on new kernels
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| special libs
+
| Need in modified kernel
−
 
+
| Yes, but only for some extra features. All unnecessary features are already in new kernel versions
−
 
+
| No
−
 
+
| No, just need to load module. May be problems with installation on new kernels
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| root privileges
+
| App need to pre-load special libraries
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes, otherwise it would be unsafe,because,for example, of parasite code
+
| No
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
+
| Yes
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
+
| Yes
    
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| need to modify programs
+
| Requires root privileges
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
+
| Yes, due to restrictions from some kernel APIs it uses
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
+
| No
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| No
−
 
  −
there are some difficulties with statically linked applications, and with LinuxThreads (cuz it does not support them at all)
  −
 
  −
 
  −
 
  −
 
  −
|-
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| need to prepare tasks
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
  −
 
  −
It preloadsthe DMTCP library. That library runs before the routinemain(). It creates a second thread. Thecheckpoint thread then creates a socket to the DMTCP coordinator andregisters itself. The checkpoint thread also creates a signal handler.
  −
 
  −
 
  −
 
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
  −
 
  −
CR shall notify processes when a checkpoint is to occur (before the kernel takes a checkpoint) to
  −
 
  −
allow the processes to prepare itself accordingly.
  −
 
  −
 
  −
 
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| Does it change behavior of the c/r-ed programs?
+
| Need to modify programs to C/R
−
 
+
| No
 +
| No
 +
| Yes. There are some difficulties with statically linked applications, and with LinuxThreads (it does not support them at all)
   −
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
  −
  −
because of wrappers on system calls
  −
  −
  −
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
  −
  −
because of wrappers on system calls
      
|-
 
|-
−
| style="background-color:#008000;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
| Need to prepare tasks
−
| style="background-color:#008000;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
| No
−
| style="background-color:#008000;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
| Yes. It preloadsthe DMTCP library. That library runs before the routinemain(). It creates a second thread. Thecheckpoint thread then creates a socket to the DMTCP coordinator andregisters itself. The checkpoint thread also creates a signal handler.
−
| style="background-color:#008000;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
| Yes. CR shall notify processes when a checkpoint is to occur (before the kernel takes a checkpoint) to allow the processes to prepare itself accordingly.
−
 
  −
|-
  −
| style="border:1pt solid #000000;padding:0.176cm;"| migration
  −
| style="border:1pt solid #000000;padding:0.176cm;"| yes
  −
 
  −
even if kernel ,libs, etc are newer
  −
 
  −
 
  −
Can use Memory Changes Tracking to decrease time for dumping
  −
| style="border:1pt solid #000000;padding:0.176cm;"| yes
  −
 
  −
if both kernels are recent
  −
| style="border:1pt solid #000000;padding:0.176cm;"| yes
  −
 
  −
but if all is the same!
  −
 
     −
if even prelinked addresses are different,it will not restore
  −
  −
  −
But it can save the whole used libs and localization files to restore program on the different machine
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| Containers
+
| Does it change behavior of the c/r-ed programs?
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| No
−
 
+
| Yes, because of wrappers on system calls
−
LXC and OpenVZ containers
+
| Yes, because of wrappers on system calls
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| looks like no
  −
 
  −
It doesn't support namespaces, so it probably can’t dump containers
  −
 
  −
 
  −
 
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| looks like no
      
|-
 
|-
−
| style="border:1pt solid #000000;padding:0.176cm;"| parallel/distributed computations
+
| Live migration
−
| style="border:1pt solid #000000;padding:0.176cm;"| no
+
| Yes, even if kernel, libs, etc are newer. Can use Memory Changes Tracking to decrease freeze time
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes, if both kernels are recent
−
 
+
| Yes, but if all components are the same. Even if prelinked addresses are different,it will not restore, but it can save the whole used libs and localization files to restore program on the different machine
−
OpenMPI, MPICH2, OpenMP, Cilk are alredy supported and Infiniband is in progress.
  −
| style="border:1pt solid #000000;padding:0.176cm;"| yes
  −
 
  −
Cray MPI, Intel MPI, LAM/MPI, MPICH-V, MPICH2, MVAPICH, Open MPI, SGI MPT
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| c\r gdb with debugging app
+
| Containers
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no, because they are using the same interface
+
| Yes, LXC and OpenVZ containers
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| No. It doesn't support namespaces, so it probably can’t dump containers
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
+
| Looks like no
    
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| X-Windows graphics programs (KDE, GNOME, etc)
+
| Parallel/distributed computations libraries
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes, by using vnc
+
| No (in plans)
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes, by using vnc
+
| Yes. OpenMPI, MPICH2, OpenMP, Cilk are alredy supported and Infiniband is in progress
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| seems like no
+
| Yes. Cray MPI, Intel MPI, LAM/MPI, MPICH-V, MPICH2, MVAPICH, Open MPI, SGI MPT
−
 
  −
 
  −
 
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| Solutions for invocation in the custom software
+
| C/R gdb with debugging app
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| not yet
+
| No, because they are using the same interface
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
 
+
| No
−
Plugins and API
  −
 
  −
 
  −
 
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| not yet
      
|-
 
|-
−
| colspan="4"  style="background-color:#800080;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|  
+
| X-Windows apps (KDE, GNOME, etc)
 +
| Yes, by using vnc
 +
| Yes, by using vnc
 +
| Looks like no
   −
|-
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| unix sockets
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes,all kinds
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| udp sockets
+
| Solutions for invocation in the custom software
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes, both ipv4 and ipv6
+
| No, only fork + daemonize + exec
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| not yet
+
| Yes. Plugins and API
−
 
+
| Not yet
−
developers of dmtcp had no request for this
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| not yet
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| tcp sockets
+
| colspan="4" |
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| not yet
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| remote tcp connection
+
| Unix sockets
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| not yet
+
| Yes
−
 
+
| No
−
but you can write a simple DMTCP plugin that tells DMTCP how you want to reconnect on restart
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| Infiniband
+
| UDP sockets
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
+
| Yes, both ipv4 and ipv6
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| not yet
+
| Not yet. Developers of dmtcp had no request for this
−
 
+
| Not yet
−
developing is on the half-way
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
      
|-
 
|-
−
| style="background-color:#008080;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
| TCP sockets
−
| style="background-color:#008080;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
| Yes
−
| style="background-color:#008080;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
| Yes
−
| style="background-color:#008080;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"|
+
| Not yet
    
|-
 
|-
−
| style="border:1pt solid #000000;padding:0.176cm;"| multithread support
+
| Established tcp connection
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| No, but you can write a simple DMTCP plugin that tells DMTCP how you want to reconnect on restart
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| No
    
|-
 
|-
−
| style="border:1pt solid #000000;padding:0.176cm;"| multiprocess
+
| Infiniband
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| No
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Not yet, developing is on the half-way
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| No
    
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| process groups
+
| Multithread support
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| not yet
+
| Yes
    
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| zombies
+
| Multiprocess
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
+
| Yes
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
+
| Yes
    
|-
 
|-
−
| style="border:1pt solid #000000;padding:0.176cm;"| namespaces
+
| Process groups and sessions
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border:1pt solid #000000;padding:0.176cm;"| no
+
| Yes
−
| style="border:1pt solid #000000;padding:0.176cm;"| no
+
| Not yet
    
|-
 
|-
−
| style="border:1pt solid #000000;padding:0.176cm;"| sessions
+
| Zombies
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| No
−
| style="border:1pt solid #000000;padding:0.176cm;"| not yet
+
| No
    
|-
 
|-
−
| style="border:1pt solid #000000;padding:0.176cm;"| Ptraced programs
+
| Namespaces
−
| style="border:1pt solid #000000;padding:0.176cm;"| no
+
| Yes
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| No
−
| style="border:1pt solid #000000;padding:0.176cm;"| no
+
| No
    
|-
 
|-
−
| style="border:1pt solid #000000;padding:0.176cm;"| System V IPC
+
| Ptraced programs
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| No
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border:1pt solid #000000;padding:0.176cm;"| no
+
| No
    
|-
 
|-
−
| style="border:1pt solid #000000;padding:0.176cm;"| memory mappings
+
| System V IPC
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes, all kinds
+
| Yes
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes, partially
+
| No
    
|-
 
|-
−
| style="border:1pt solid #000000;padding:0.176cm;"| protected memory
+
| Memory mappings
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes, all kinds
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes, partially
    
|-
 
|-
−
| style="border:1pt solid #000000;padding:0.176cm;"| pipes
+
| Pipes
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border:1pt solid #000000;padding:0.176cm;"| not yet
+
| Not yet
    
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| terminals
+
| Terminals
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes, but only Unix98 PTYs
−
 
+
| Yes
−
only Unix98 PTYs
+
| Yes
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
  −
 
  −
 
  −
 
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| non-posix files (inotify, signalfd, eventfd, etc)
+
| Non-posix files (inotify, signalfd, eventfd, etc)
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes, inotify, fanotify, epoll, signalfd, eventfd
−
 
+
| Yes, epoll, eventfd, signalfd are already supported and inotify will be supported in future
−
inotify, epoll, etc.
+
| Looks like no
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| Yes
  −
 
  −
epoll, eventfd, signalfd are already supported and
  −
 
  −
inotify will be supported in future
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| looks like no
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| timers
+
| Timers
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
+
| No. Any counter or timer active since the beginning of a process will consider the restarted process to be a new process.
−
 
+
| Yes
−
Any counter or timer active since the beginning of a process will consider the restarted process to be a new process.  
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| Shared resources (files, mm, etc.)
+
| Shared resources (files, mm, etc.)
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes. SysVIPC, files, fd table and memory
−
 
+
| Yes. System V shared memory(shmget, etc.), mmap-based shared memory, shared sockets, pipes, file descriptors
−
files, memory, etc.
+
| No, but it is planned to suppord shared mmap regions
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
  −
 
  −
System V shared memory(shmget, etc.), mmap-based shared memory, shared sockets, pipes, file descriptors.
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
  −
 
  −
but it is planned to suppord shared mmap regions
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| block devices
+
| Block devices
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| looks like yes
+
| No
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| looks like yes
+
| Looks like yes
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| no
+
| No
−
 
  −
 
         
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| character devices
+
| Character devices
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| mostly no
+
| Yes, only /dev/null, /dev/zero, etc. are supported
−
 
+
| Yes, looks like null and zero are supported
−
but /dev/null, /dev/zero, etc. are supported
+
| Yes, /dev/null and /dev/zero
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| mostly no
  −
 
  −
looks like null and zero are supported
  −
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| mostly no
  −
 
  −
but /dev/null and
  −
 
  −
/dev/zero are supported
      
|-
 
|-
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| capture the contents of all open files
+
| Capture the contents of open files
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| yes
+
| Yes, if file is unlinked
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| looks like no
+
| Looks like no
−
| style="border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.176cm;"| not yet
+
| Not yet
    
|}
 
|}
Retrieved from "https://criu.org/Special:MobileDiff/1118"