Jonathan Schwartz, executive vice-president of software at Sun, claimed that the performance of Solaris now is "at parity with or better than Red Hat"
on low-end servers with up to four processors. That applies to systems based on Xeon or Opteron processors in addition to Sun's own Sparc chips, he
Schwartz acknowledged that Sun had neglected the entry-level server market in the past and focused on large multiprocessor systems. But, he said,
Solaris developers have spent the past two years working with users to upgrade the operating system's performance on low-end machines.