tag:blogger.com,1999:blog-8908007078853642865.post3082025003431199445..comments2023-10-26T07:55:37.152-05:00Comments on system("rm -rf /");: Linux’s vsyscallRichard Lihttp://www.blogger.com/profile/10372929728933063306noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-8908007078853642865.post-75838057959669476402020-05-20T00:32:19.901-05:002020-05-20T00:32:19.901-05:00TouchTec is a leading company in region with more ...TouchTec is a leading company in region with more than 10 years of experience that provides Security, Safety and Surveillance Solutions with high assurance to improve security and efficiencies for identity management, access to critical facilities, intelligence analysis, guest worker programs, and national identity programs<br /><a href="https://touchtec.in/projects/" rel="nofollow">CCTV for School</a><br /><a href="https://touchtec.in/projects/" rel="nofollow">Cctv Camera for Office</a>Touch Techttps://www.blogger.com/profile/16148332533589455657noreply@blogger.comtag:blogger.com,1999:blog-8908007078853642865.post-65830719639122065192016-12-06T23:43:01.107-06:002016-12-06T23:43:01.107-06:00I am cheerful to see this you tube video at this w...I am cheerful to see this you tube video at this web site, so right now I am also going to add all my video clips at YouTube web site.<br /><br /><a href="https://www.trantechsecurity.com.au/products/intercoms/dorani" rel="nofollow">Dorani intercom</a>Allenbrayanhttps://www.blogger.com/profile/04593221252630918589noreply@blogger.comtag:blogger.com,1999:blog-8908007078853642865.post-23656080039655419962011-06-02T19:38:42.092-05:002011-06-02T19:38:42.092-05:00Microsoft is right, virtual memory is for providin...Microsoft is right, virtual memory is for providing more memory than what is physically available. Swapping is the mechanism for achieve it.<br /><br />You could use "Virtual memory space" instead "Virtual memory" (if you want no be confused)Felipe Astrozahttps://www.blogger.com/profile/03409839299720235173noreply@blogger.comtag:blogger.com,1999:blog-8908007078853642865.post-71859472791851254442011-01-11T18:23:51.995-06:002011-01-11T18:23:51.995-06:00rdtsc is not recommended on SMP or multi-core syst...rdtsc is not recommended on SMP or multi-core systems as there can be skew across individual cores. If your process is migrated from one core to another, you could actually see time move backwards! :)<br /><br />I believe gettimeofday is the recommended method and should be very fast.Unknownhttps://www.blogger.com/profile/16468768637580913715noreply@blogger.comtag:blogger.com,1999:blog-8908007078853642865.post-13362022096143314612010-07-18T19:58:18.595-05:002010-07-18T19:58:18.595-05:00I wouldn't actually call those "system ca...I wouldn't actually call those "system calls", and I would say that they are in fact done "completely in userspace": you can do getcpu() with the CPUID instruction, and get the time with RDTSC ("read from timestamp counter"), both of which can execute in userspace (although it looks like prctl can disable RDTSC if you want to explicitly do so).Geoffrey Thomashttp://geofft.mit.edu/blognoreply@blogger.com