We noted that memory bus speed for Sun X4270 Nehalem servers might be different (depends on how many DIMMs are populated per channel).
Do you know any Solaris command or DTrace script to check the actual memory bus speed? Note: 18 DIMM slots total for DDR3 memory. DIMMs are organized in 3 channels per processor and 3 DIMM slots per channel.. • Memory bus speed of 1333 MHz is supported on Intel Xeon models X5570 and X5560 only when used with 1333 MHz DIMMs and when no more than two DIMMs are populated per channel. • Memory bus speed of 1066 MHz is supported on all offered Intel Xeon models with any of the offered DIMMs and when no more than two DIMMs are populated per channel. • When 3 DIMMs are populated per channel, the memory bus speed is 800 MHz. -- This message posted from opensolaris.org _______________________________________________ dtrace-discuss mailing list dtrace-discuss@opensolaris.org
