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linux:kernel:c-states [2025/11/01 20:32] – created niziaklinux:kernel:c-states [2025/11/01 20:43] (current) – niziak
Line 2: Line 2:
  
 ===== ad-hoc disable of C-states ===== ===== ad-hoc disable of C-states =====
 +
 +<code bash>
 +cat >/dev/cpu_dma_latency <(echo -e -n "\x0\x0\x0\x0" ; sleep inf)
 +</code>
  
 Cause power higher (by 50W) power consumption on Dell PowerEdge R720 (32 x Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz (2 Sockets)) Cause power higher (by 50W) power consumption on Dell PowerEdge R720 (32 x Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz (2 Sockets))