Description of problem:
Is it necessary to ship a package in which some screen savers are so CPU
intensive and causing excessive temperature comtrol ?
Also a problem for power consumption.

Time to look for a light X screen saver and locker.

xscreensaver is too cpu intensive, and also too heavy (MB).

Version-Release number of selected component (if applicable):
 xscreensaver-base            i686     1:5.15-3.fc16        @updates     1.3 M
 xscreensaver-extras          i686     1:5.15-3.fc16        @updates     6.5 M
 xscreensaver-extras-base     i686     1:5.15-3.fc16        @updates     182 k

How reproducible:
Menu - Preferences - Screensaver

Steps to Reproduce:
1. as above
2. test screen savers
3.
  
Actual results:

Select m6502 from Random Screen Saver
Almost immediately the system is very busy (m6502's %CPU around 75) and soon
temperature control jumps in.
$ top
top - 14:50:06 up  1:01,  1 user,  load average: 0.39, 0.30, 0.16
Tasks: 104 total,   2 running, 102 sleeping,   0 stopped,   0 zombie
Cpu(s):  1.0%us,  1.3%sy, 74.9%ni, 22.4%id,  0.0%wa,  0.0%hi,  0.3%si,  0.0%st
Mem:    759804k total,   472376k used,   287428k free,    22384k buffers
Swap:  1171764k total,        0k used,  1171764k free,   293828k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 1512 jb        30  10  7392 4056 1720 R 75.2  0.5   0:47.73 m6502
  878 root      20   0 31632  10m 6488 S  1.7  1.4   0:34.86 X
 1447 root      20   0     0    0    0 S  0.3  0.0   0:00.10 kworker/0:2
 1506 jb        20   0  2856 1116  892 R  0.3  0.1   0:00.29 top
    1 root      20   0  5456 3328 1948 S  0.0  0.4   0:01.64 systemd
    2 root      20   0     0    0    0 S  0.0  0.0   0:00.00 kthreadd
    3 root      20   0     0    0    0 S  0.0  0.0   0:00.10 ksoftirqd/0

Also bad examples: XAnalogTV, XLyap, XRaySwarm, Zoom, etc.

Expected results:
Screen saver easy on system, temperature, and power consumption/management.

Additional info: