On Sun, 2 Jan 2005 18:48:58 -0500, Konstantin Ryabitsev <mricon@xxxxxxxxx> wrote: > No it isn't. When you are doing "rpm -qa" you are only querying the > database of installed packages. When doing "yum list" you are querying > installed, AND available packages, for which the metadata must be > parsed and loaded. That's a significant difference, if only because > the number of packages goes up from a few hundred to several > thousands. In fact: icon@protee:[~]$ rpm -qa | wc -l 645 so, 645 packages installed icon@protee:[~]$ time rpm -qa '*mtr*' mtr-2:0.54-10.i386 real 0m5.006s user 0m4.760s sys 0m0.135s so, 5 seconds icon@protee:[~]$ time yum -C list '*mtr*' Setting up Repo: updates-released Setting up Repo: base Setting up Repo: freshrpms Reading repository metadata in from local files updates-re: ################################################## 407/407 base : ################################################## 2622/2622 freshrpms : ################################################## 456/456 Excluding Packages from Fedora Core 3 - i386 - Released Updates Finished Installed Packages mtr.i386 2:0.54-10 installed Available Packages mtr-gtk.i386 2:0.54-10 base real 0m8.215s user 0m5.585s sys 0m0.435s so, 3485 packages in 8.2 seconds. By golly, yum is, actually *faster* then rpm -qa, taking less than twice as long for 5 times as many packages. Regards, -- Konstantin Ryabitsev Zlotniks, INC
