[openib-general] Re: FW: SDP problems with 64K page size

2005-09-27 Thread Jerome Pioux
Okay I will try that too and let you know. Thank you. Jerome - Original Message - From: "Michael S. Tsirkin" <[EMAIL PROTECTED]> To: "Roland Dreier" <[EMAIL PROTECTED]> Cc: "Jerome Pioux" <[EMAIL PROTECTED]>; "Tom Duffy" <[EMAIL PROTECTED]>; Sent: Monday, September 26, 2005 8:05 PM

[openib-general] Re: FW: SDP problems with 64K page size

2005-09-26 Thread Michael S. Tsirkin
Quoting r. Jerome Pioux <[EMAIL PROTECTED]>: > Subject: Re: FW: SDP problems with 64K page size > > > The best way to fix this appears to be to bump the counters up to u32 or > > s32. > > Just an open question: Do you think that we could get better performance if > we would go with u32 instead

[openib-general] Re: FW: SDP problems with 64K page size

2005-09-26 Thread Michael S. Tsirkin
Quoting r. Roland Dreier <[EMAIL PROTECTED]>: > Subject: Re: FW: SDP problems with 64K page size > > Jerome> Just an open question: Do you think that we could get > Jerome> better performance if we would go with u32 instead of > Jerome> reducing the buffer to 16K? > > Not sure. One e

[openib-general] Re: FW: SDP problems with 64K page size

2005-09-26 Thread Roland Dreier
Jerome> Just an open question: Do you think that we could get Jerome> better performance if we would go with u32 instead of Jerome> reducing the buffer to 16K? Not sure. One easy test you could try would be increasing 16384 to 32768 in my patch. If that works and improves performance

[openib-general] Re: FW: SDP problems with 64K page size

2005-09-26 Thread Jerome Pioux
The best way to fix this appears to be to bump the counters up to u32 or s32. Just an open question: Do you think that we could get better performance if we would go with u32 instead of reducing the buffer to 16K? Jerome - Original Message - From: "Michael S. Tsirkin" <[EMAIL PROTE

[openib-general] Re: FW: SDP problems with 64K page size

2005-09-25 Thread Roland Dreier
Michael> Roland, I might check in the patch that you posted to Michael> work around this problem for 64K page users, until I have Michael> a final fix ready. Is that OK with everyone? Fine with me... you might want to use this patch instead (change from min() to min_t() to avoid some

[openib-general] Re: FW: SDP problems with 64K page size

2005-09-25 Thread Michael S. Tsirkin
Quoting r. Roland Dreier <[EMAIL PROTECTED]>: > Subject: FW: SDP problems with 64K page size > > Hi, Jerome asked me to forward this on, since for some reason his > email didn't appear when he sent it. > > In any case there seem to be some PAGE_SIZE dependencies in SDP. > Libor provided a patch t