https://community.hpe.com/t5/operating-system-linux/columns-in-top/m-p/4927613#M46121 all,<BR />I have:<BR />Cpu(s): 7.0% us, 1.0% sy, 0.6% ni, 91.2% id, 0.2% wa, 0.1% hi, 0.0% si<BR /><BR />I am interested in what "% hi" and "% si" mean?<BR /><BR />Thanks. Tue, 20 Sep 2005 21:03:09 GMT K.C. Chan 2005-09-20T21:03:09Z https://community.hpe.com/t5/operating-system-linux/columns-in-top/m-p/4927613#M46121 all,<BR />I have:<BR />Cpu(s): 7.0% us, 1.0% sy, 0.6% ni, 91.2% id, 0.2% wa, 0.1% hi, 0.0% si<BR /><BR />I am interested in what "% hi" and "% si" mean?<BR /><BR />Thanks. Tue, 20 Sep 2005 21:03:09 GMT https://community.hpe.com/t5/operating-system-linux/columns-in-top/m-p/4927613#M46121 K.C. Chan 2005-09-20T21:03:09Z https://community.hpe.com/t5/operating-system-linux/columns-in-top/m-p/4927614#M46122 Hi Chan,<BR />here it is an explanation:<BR /><BR />us = regular user apps<BR />sy = system (general kernel stuff)<BR />ni = nice user apps (low-priority tasks)<BR />id = idle<BR />wa = waiting for IO to complete<BR />hi = hard interrupt (IRQ) handlers<BR />si = soft interrupt handlers<BR /><BR />( If you consider vmstat, it mixes ni into us, and hi and si into sy. )<BR /><BR />Differences between hard and soft interrupts?<BR />Check the file in attachment, and this link:<BR /><BR /><A href="http://cs1.cs.nyu.edu/web/Research/Theses/edler_jan.pdf" target="_blank">http://cs1.cs.nyu.edu/web/Research/Theses/edler_jan.pdf</A><BR /><BR /><BR />Best regards,<BR />Alessandro Wed, 21 Sep 2005 03:44:27 GMT https://community.hpe.com/t5/operating-system-linux/columns-in-top/m-p/4927614#M46122 Alessandro Pilati 2005-09-21T03:44:27Z https://community.hpe.com/t5/operating-system-linux/columns-in-top/m-p/4927615#M46123 Thanks for your info. Wed, 21 Sep 2005 11:52:21 GMT https://community.hpe.com/t5/operating-system-linux/columns-in-top/m-p/4927615#M46123 K.C. Chan 2005-09-21T11:52:21Z