search for: dql

...tching. >>> >>> What did I miss? >> Consider the case: >> >> >> TX NAPI is disabled: >> >> send N packets >> >> turn TX NAPI on: >> >> get tx interrupt >> >> BQL try to consume those packets when lead WARN for dql. >> >> >> Thanks > Can one really switch tx napi on and off? How? > While root can change the napi_tx module parameter, I don't think > that has any effect outside device probe time. What did I miss? > > > We support switch the mode through ethtool recently....

...#39;t understand this comment. > This patch only enabled BQL with tx napi. > > Thus there's no mode switching. > > What did I miss? Consider the case: TX NAPI is disabled: send N packets turn TX NAPI on: get tx interrupt BQL try to consume those packets when lead WARN for dql. Thanks > > >> I did it by >> tracking it through skb->cb.? And deal with the freeze by reset the BQL >> status. Patch attached. >> >> But when testing with vhost-net, I don't very a stable performance, it was >> probably because we batch the us...

...#39;t understand this comment. > This patch only enabled BQL with tx napi. > > Thus there's no mode switching. > > What did I miss? Consider the case: TX NAPI is disabled: send N packets turn TX NAPI on: get tx interrupt BQL try to consume those packets when lead WARN for dql. Thanks > > >> I did it by >> tracking it through skb->cb.? And deal with the freeze by reset the BQL >> status. Patch attached. >> >> But when testing with vhost-net, I don't very a stable performance, it was >> probably because we batch the us...

...s.c #include <stdarg.h> typedef struct DWordS_struct { int i; char c; } DWordS; typedef struct LargeS_struct { int i; double d; DWordS* ptr; int j; } LargeS; void test(char *fmt,...); int main() { DWordS dw = { 18, 'a' }; LargeS ls = { 21, 22.0, &dw, 23 }; test("DQL", dw, ls); return 0; } After code generation, clang runs several llvm IR optimization passes including InstCombine. The following is the bitcode before InstCombine is run. The second argument %dw of function test is of type "%struct.DWordS_struct* byval", which has a 4-byte align...

...; > Thus there's no mode switching. > > > > What did I miss? > > > Consider the case: > > > TX NAPI is disabled: > > send N packets > > turn TX NAPI on: > > get tx interrupt > > BQL try to consume those packets when lead WARN for dql. > > > Thanks Can one really switch tx napi on and off? How? While root can change the napi_tx module parameter, I don't think that has any effect outside device probe time. What did I miss? > > > > > > > > > I did it by > > > tracking it t...

..../../src/include -c cumsum.c cc -ieee_with_inexact -g -I../../src/include -c distance.c f77 -c dpoco.f -o dpoco.o f77 -c dpodi.f -o dpodi.o f77 -c dpofa.f -o dpofa.o f77 -c dposl.f -o dposl.o f77 -c dqrdc.f -o dqrdc.o f77 -c dqrdc2.f -o dqrdc2.o f77 -c dqrls.f -o dqrls.o f77 -c dqrsl.f -o dql.o f77 -c dqrutl.f -o dqrutl.o f77 -c dsvdc.f -o dsvdc.o f77 -c dtrsl.f -o dtrsl.o cc -ieee_with_inexact -g -I../../src/include -c eigen.c cc -ieee_with_inexact -g -I../../src/include -c fortran.c cc -ieee_with_inexact -g -I../../src/include -c fft.c f77 -c fmin.f -o fmin.o f77 -c lminfl.f -...

On 2018/12/6 ??6:54, Michael S. Tsirkin wrote: > When use_napi is set, let's enable BQLs. Note: some of the issues are > similar to wifi. It's worth considering whether something similar to > commit 36148c2bbfbe ("mac80211: Adjust TSQ pacing shift") might be > benefitial. I've played a similar patch several days before. The tricky part is the mode switching

On 2018/12/6 ??6:54, Michael S. Tsirkin wrote: > When use_napi is set, let's enable BQLs. Note: some of the issues are > similar to wifi. It's worth considering whether something similar to > commit 36148c2bbfbe ("mac80211: Adjust TSQ pacing shift") might be > benefitial. I've played a similar patch several days before. The tricky part is the mode switching