https://community.hpe.com/t5/operating-system-linux/cpu-utilization-on-dl580/m-p/4778264#M59754 Hi,<BR /><BR />I am using OEL 5.3 64-bit on HP DL580 (4 CPU). i am decompressing the Oracle backup by tar command. <BR /><BR />only one core is being utilized 65% and rest of the cores are free and load average is 4.4. <BR /><BR />I want to know why the CPU is not being equally utilized?<BR /> Sat, 16 Apr 2011 12:14:41 GMT Ammad 2011-04-16T12:14:41Z https://community.hpe.com/t5/operating-system-linux/cpu-utilization-on-dl580/m-p/4778264#M59754 Hi,<BR /><BR />I am using OEL 5.3 64-bit on HP DL580 (4 CPU). i am decompressing the Oracle backup by tar command. <BR /><BR />only one core is being utilized 65% and rest of the cores are free and load average is 4.4. <BR /><BR />I want to know why the CPU is not being equally utilized?<BR /> Sat, 16 Apr 2011 12:14:41 GMT https://community.hpe.com/t5/operating-system-linux/cpu-utilization-on-dl580/m-p/4778264#M59754 Ammad 2011-04-16T12:14:41Z https://community.hpe.com/t5/operating-system-linux/cpu-utilization-on-dl580/m-p/4778265#M59755 Because gunzip isn't multithreaded. And I assume the gzip format doesn't lend itself to parallel processing.<BR /><BR />Do something else with those CPUs. Sat, 16 Apr 2011 12:52:42 GMT https://community.hpe.com/t5/operating-system-linux/cpu-utilization-on-dl580/m-p/4778265#M59755 Dennis Handly 2011-04-16T12:52:42Z