Hi-- On 3/23/23 20:03, Feng Tang wrote: > Hi Randy, > > Thank you for the thorough reviews! > > On Thu, Mar 23, 2023 at 09:49:02AM -0700, Randy Dunlap wrote: >> Hi, >> >> Lots of good/interesting info here. >> >> On 3/23/23 01:26, Feng Tang wrote: >>> From: "Tang, Feng" <feng.tang@xxxxxxxxx> >>> + >>> +'refcount' is modified frequently, but 'name' is set once at object >>> +creation time and is never modified. When many CPUs access 'foo' at >>> +the same time, and 'refcount' is only bumped by one CPU frequently, >>> +while 'name' is read by all other CPUs, which have to reload the whole >>> +cache line over and over, even though the 'name' is never changed. >> >> That last "sentence" is not a sentence. > > How about: > > " > When many CPUs access 'foo' at the same time, with 'refcount' being only > bumped by one CPU frequently and 'name' being read by other CPUs, all > those reading CPUs have to reload the whole cache line over and over > due to the 'sharing', even though 'name' is never changed. > " > ? Yes, that's good. Thanks. -- ~Randy
