Re: [PATCH v1 0/7] writeback incompressible pages to storage

2017-06-29 Thread Minchan Kim
On Thu, Jun 29, 2017 at 06:17:13PM +0900, Sergey Senozhatsky wrote: > Hello, > > On (06/29/17 17:47), Minchan Kim wrote: > [..] > > > > This patch supports writeback feature of zram so admin can set up > > > > a block device and with it, zram can save the memory via writing > > > > out the

Re: [PATCH v1 0/7] writeback incompressible pages to storage

2017-06-29 Thread Minchan Kim
On Thu, Jun 29, 2017 at 06:17:13PM +0900, Sergey Senozhatsky wrote: > Hello, > > On (06/29/17 17:47), Minchan Kim wrote: > [..] > > > > This patch supports writeback feature of zram so admin can set up > > > > a block device and with it, zram can save the memory via writing > > > > out the

Re: [PATCH v1 0/7] writeback incompressible pages to storage

2017-06-29 Thread Sergey Senozhatsky
Hello, On (06/29/17 17:47), Minchan Kim wrote: [..] > > > This patch supports writeback feature of zram so admin can set up > > > a block device and with it, zram can save the memory via writing > > > out the incompressile pages once it found it's incompressible pages > > > (1/4 comp ratio)

Re: [PATCH v1 0/7] writeback incompressible pages to storage

2017-06-29 Thread Sergey Senozhatsky
Hello, On (06/29/17 17:47), Minchan Kim wrote: [..] > > > This patch supports writeback feature of zram so admin can set up > > > a block device and with it, zram can save the memory via writing > > > out the incompressile pages once it found it's incompressible pages > > > (1/4 comp ratio)

Re: [PATCH v1 0/7] writeback incompressible pages to storage

2017-06-29 Thread Minchan Kim
Hi Sergey, On Thu, Jun 29, 2017 at 12:41:57AM +0900, Sergey Senozhatsky wrote: > Hello, > > On (06/26/17 15:52), Minchan Kim wrote: > [..] > > zRam is useful for memory saving with compressible pages but sometime, > > workload can be changed and system has lots of incompressible pages > > which

Re: [PATCH v1 0/7] writeback incompressible pages to storage

2017-06-29 Thread Minchan Kim
Hi Sergey, On Thu, Jun 29, 2017 at 12:41:57AM +0900, Sergey Senozhatsky wrote: > Hello, > > On (06/26/17 15:52), Minchan Kim wrote: > [..] > > zRam is useful for memory saving with compressible pages but sometime, > > workload can be changed and system has lots of incompressible pages > > which

Re: [PATCH v1 0/7] writeback incompressible pages to storage

2017-06-28 Thread Sergey Senozhatsky
Hello, On (06/26/17 15:52), Minchan Kim wrote: [..] > zRam is useful for memory saving with compressible pages but sometime, > workload can be changed and system has lots of incompressible pages > which is very harmful for zram. could do. that makes zram quite complicated, to be honest. no

Re: [PATCH v1 0/7] writeback incompressible pages to storage

2017-06-28 Thread Sergey Senozhatsky
Hello, On (06/26/17 15:52), Minchan Kim wrote: [..] > zRam is useful for memory saving with compressible pages but sometime, > workload can be changed and system has lots of incompressible pages > which is very harmful for zram. could do. that makes zram quite complicated, to be honest. no