Lines Matching refs:L3
36 Enable code/data prioritization in L3 cache allocations.
43 L2 and L3 CDP are controlled separately.
67 Cache resource(L3/L2) subdirectory contains the following files
166 # echo L3:0=f7 > schemata
245 This contains a set of files organized by L3 domain and by
246 RDT event. E.g. on a system with two L3 domains there will
329 On current generation systems there is one L3 cache per socket and L2
331 isn't an architectural requirement. We could have multiple separate L3
377 This can occur when aggregate L2 external bandwidth is more than L3
380 240GBps) and L3 external bandwidth is 100GBps. Now a workload with '20
381 threads, having 50% bandwidth, each consuming 5GBps' consumes the max L3
385 has capacity, the L3 external bandwidth is fully used. Also note that
410 L3 schemata file details (code and data prioritization disabled)
412 With CDP disabled the L3 schemata format is::
414 L3:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
416 L3 schemata file details (CDP enabled via mount option to resctrl)
418 When CDP is enabled L3 control is split into two separate resources
440 Memory b/w domain is L3 cache.
448 Memory bandwidth domain is L3 cache.
583 writing "3" to the pseudo_lock_measure file will trigger the L3 cache
654 On a two socket machine (one L3 cache per socket) with just four bits
662 # echo "L3:0=3;1=c\nMB:0=50;1=50" > /sys/fs/resctrl/p0/schemata
663 # echo "L3:0=3;1=3\nMB:0=50;1=50" > /sys/fs/resctrl/p1/schemata
666 of all caches (its schemata file reads "L3:0=f;1=f").
684 # echo "L3:0=3;1=c\nMB:0=1024;1=500" > /sys/fs/resctrl/p0/schemata
685 # echo "L3:0=3;1=3\nMB:0=1024;1=500" > /sys/fs/resctrl/p1/schemata
697 of L3 cache on socket 0.
704 50% of the L3 cache on socket 0 and 50% of memory b/w cannot be used by
707 # echo "L3:0=3ff;1=fffff\nMB:0=50;1=100" > schemata
714 # echo "L3:0=f8000;1=fffff" > p0/schemata
728 # echo "L3:0=7c00;1=fffff" > p1/schemata
732 For the same 2 socket system with memory b/w resource and CAT L3 the
739 # echo -e "L3:0=f8000;1=fffff\nMB:0=20;1=100" > p0/schemata
745 # echo -e "L3:0=f8000;1=fffff\nMB:0=20;1=100" > p0/schemata
752 with the kernel it's desired that the kernel on these cores shares L3 with
760 50% of the L3 cache on socket 0, and 50% of memory bandwidth on socket 0
763 # echo "L3:0=3ff\nMB:0=50" > schemata
771 # echo "L3:0=ffc00\nMB:0=50" > p0/schemata
961 As an example, the allocation of an exclusive reservation of L3 cache
1081 On a two socket machine (one L3 cache per socket) with just four bits
1087 # echo "L3:0=3;1=c" > /sys/fs/resctrl/p0/schemata
1088 # echo "L3:0=3;1=3" > /sys/fs/resctrl/p1/schemata
1093 of all caches (its schemata file reads "L3:0=f;1=f").
1125 On a two socket machine (one L3 cache per socket)::