6,534
edits
Changes
added source data
* Even without drivers RHEL5 patches add/delete 434 KLOC, which is 8.5x times bigger then OpenVZ kernel modifications (51 KLOC);
* OpenVZ based on mainstream 2.6.27 kernel requires 40% less modifications (not counting modules) due to on going mainstream integration.
=== Source data ===
<pre>
RHEL5 U3 2.6.18-128.1.1.el5
files add del
----- --------- -------
combined: 4962 1 190 308 210 460
` drivers: 2179 800 889 166 009
` other: 2783 389 419 44 451
` xen 713 124 721 9 087
` ext4 33 28 631 0 /* backported */
` gfs 72 27 786 0
` utrace 114 13 741 6 818
` other 1851 194 540 28 546
OpenVZ 2.6.18-028stab062
combined: 980 79 054 6 644
` mod: 66 34 621 0
` cpt 47 21 747 0
` other 19 12 874 0
` core: 914 44 433 6 644
` bc 190 11 719 669
` fsched 53 4 195 515
` hfixes 222 4 036 1 185
` 4gb 72 2 308 709
` other 377 22 175 3 566
OpenVZ 2.6.27-aivazovsky
combined: 510 59 606 2 921
` mod: 65 31 933 0
` core: 455 27 673 2 921
</pre>