The cpu.shares and cpu.myshares attributes determine each active lnode's current allocated share of CPU, as a percentage. The shares of inactive users make no difference to allocated share. If only one user is active, that user will have 100 percent of the available CPU resource. If there are only two active users with equal shares in the same group, each will have allocated shares of 50 percent. See Calculation of Allocated Share for more information on how the allocated share is calculated.