RE: L4Re IPC share memory that share file in one Linux filesystem and be visible to other Linuxes
Joyce Peng(彭美僑) <[email protected]>
| Newsgroups | gmane.comp.micro-kernel.l4.devel |
|---|---|
| Message-ID | <[email protected]> |
Yes, I know this easiest way that mount filesystem via NFS, NBD or SMB. But I have a mission to evaluate the IPC performance between two Linuxes that run on top of Fiasco.OC. So our evaluated environment is run a media player in one Linux and this player will access media data in other Linux. And we use uvmm to run two vms that run Linux respectively. Regards, Joyce.Peng(彭美僑) -----Original Message----- From: Matthias Lange [mailto:[email protected]] Sent: Thursday, July 06, 2017 4:58 AM To: [email protected] Cc: Joyce Peng(彭美僑) Subject: Re: L4Re IPC share memory that share file in one Linux filesystem and be visible to other Linuxes Hi, On 07/05/2017 05:47 AM, Joyce Peng(彭美僑) wrote: > Hi L4, > > I want to share a file in one Linux filesystem and be visible to > other Linuxes that all run on top Fiasco.OC. It seems an IPC > communication between L4re vm tasks. And access a file in Linux > filesystem is a mechanism of kernel block device driver. But I only > notice two char device drivers that use L4re library l4shmc in > L4linux. It is l4ser_shm and l4shmnet. May you give some information about this work how to work. > Thanks. Have you thought about how to syncronize access to the filesystem between the two VMs? The easiest approach would be to setup a (virtual) network connection between the two VMs and let one VM provide the filesystem via NFS, NBD or SMB. Regards, Matthias. > > Joyce.peng(彭美僑) _______________________________________________ l4-hackers mailing list [email protected] http://os.inf.tu-dresden.de/mailman/listinfo/l4-hackers