It doesn't work

[ilqvya]

/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:57: GtkWarning: could not open display
  warnings.warn(str(e), _gtk.Warning)
parsing '/var/log/bootchart.tgz'
parsing 'header'
parsing 'dmesg'
parsing 'cmdline2.log'
parsing 'paternity.log'
parsing 'proc_cpuinfo.log'
parsing 'proc_diskstats.log'
parsing 'proc_meminfo.log'
parsing 'proc_stat.log'
parsing 'taskstats.log'
Parse error: empty state: '/var/log/bootchart.tgz' does not contain a valid bootchart

[ilqvya]

[root@centos7_x64_test ~]# cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.10.0-1160.31.1.el7.x86_64 root=/dev/mapper/centos-root ro crashkernel=auto spectre_v2=retpoline rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet initcall_debug printk.time=y init=/sbin/bootchartd
[root@centos7_x64_test ~]# ls /var/log/
anaconda  boot.log  chrony  dmesg      firewalld  grubby_prune_debug  maillog   rhsm    spooler   tuned                 vmware-network.2.log  vmware-network.4.log  vmware-vgauthsvc.log.0  vmware-vmsvc-root.log     wtmp
audit     btmp      cron    dmesg.old  grubby     lastlog             messages  secure  tallylog  vmware-network.1.log  vmware-network.3.log  vmware-network.log    vmware-vmsvc.log        vmware-vmtoolsd-root.log  yum.log       
[root@centos7_x64_test ~]#