Re: New DVB-Statistics API - please vote

2010-02-03 Thread Manu Abraham
On Wed, Feb 3, 2010 at 2:40 PM, Hans Verkuil wrote: > >> Mauro Carvalho Chehab wrote: >> after the last thread which asked about signal statistics details degenerated into a discussion about the technical possibilites for implementing an entirely new API, which lead to nothing so fa

Re: New DVB-Statistics API - please vote

2010-02-03 Thread Hans Verkuil
> Mauro Carvalho Chehab wrote: > >>> after the last thread which asked about signal statistics details >>> degenerated into a discussion about the technical possibilites for >>> implementing an entirely new API, which lead to nothing so far, I >>> wanted >>> to open a new thread to bring this forw

Re: New DVB-Statistics API - please vote

2010-02-03 Thread Mauro Carvalho Chehab
Mauro Carvalho Chehab wrote: >> after the last thread which asked about signal statistics details >> degenerated into a discussion about the technical possibilites for >> implementing an entirely new API, which lead to nothing so far, I wanted >> to open a new thread to bring this forward. Maybe s

Re: New DVB-Statistics API

2009-12-09 Thread Mauro Carvalho Chehab
Julian Scheel wrote: > Am 09.12.09 14:02, schrieb Mauro Carvalho Chehab: >> Manu Abraham wrote: > I don't think you can just take the average IPC rates into account for > this. When doing a syscall the processors TLB cache will be cleared, > which will force the CPU to go to the whole instruction

Re: New DVB-Statistics API

2009-12-09 Thread Julian Scheel
Am 09.12.09 14:02, schrieb Mauro Carvalho Chehab: Manu Abraham wrote: On Wed, Dec 9, 2009 at 3:43 AM, Mauro Carvalho Chehab wrote: Even with STB, let's assume a very slow cpu that runs at 100 Megabytes/second. So, the clock speed is 10 nanoseconds. Assuming that this CPU doesn'

Re: New DVB-Statistics API

2009-12-09 Thread Mauro Carvalho Chehab
Manu Abraham wrote: > On Wed, Dec 9, 2009 at 3:43 AM, Mauro Carvalho Chehab > wrote: >> Even with STB, let's assume a very slow cpu that runs at 100 >> Megabytes/second. So, the clock >> speed is 10 nanoseconds. Assuming that this CPU doesn't have a good >> pipeline, being >> capable of handlin

Re: New DVB-Statistics API

2009-12-09 Thread Manu Abraham
On Wed, Dec 9, 2009 at 3:43 AM, Mauro Carvalho Chehab wrote: > Manu Abraham wrote: > >>> Not true. As pointed at the previous answer, the difference between a new >>> ioctl >>> and S2API is basically the code at dtv_property_prepare_get_stats() and >>> dtv_property_process_get(). This is a pure c

Re: New DVB-Statistics API

2009-12-08 Thread Mauro Carvalho Chehab
Manu Abraham wrote: >> Not true. As pointed at the previous answer, the difference between a new >> ioctl >> and S2API is basically the code at dtv_property_prepare_get_stats() and >> dtv_property_process_get(). This is a pure code that uses a continuous struct >> that will likely be at L3 cache,

Re: New DVB-Statistics API

2009-12-08 Thread Manu Abraham
On Tue, Dec 8, 2009 at 5:22 PM, Mauro Carvalho Chehab wrote: > Hi Julian, > > Let me add some corrections to your technical analysis. > > Julian Scheel wrote: >> Hello together, >> >> after the last thread which asked about signal statistics details >> degenerated into a discussion about the techn

Re: New DVB-Statistics API

2009-12-08 Thread Mauro Carvalho Chehab
Hi Julian, Let me add some corrections to your technical analysis. Julian Scheel wrote: > Hello together, > > after the last thread which asked about signal statistics details > degenerated into a discussion about the technical possibilites for > implementing an entirely new API, which lead to n

Re: New DVB(!!)-Statistics API

2009-12-08 Thread Julian Scheel
Am 08.12.09 10:16, schrieb Julian Scheel: Hello together, after the last thread which asked about signal statistics details degenerated into a discussion about the technical possibilites for implementing an entirely new API, which lead to nothing so far, I wanted to open a new thread to bring