On 09/01/14 5:40 PM, Paolo Bonzini wrote:
Il 09/01/2014 22:55, Steven Noonan ha scritto:
From: Steven Noonan <snoo...@amazon.com>
The -fstack-protector flag family is useful for ensuring safety and for
debugging, but has a performance impact. Here's a boot time comparison between
a QEMU build of qemu-system-arm with and without the -fstack-protector-all
flag:
# WITHOUT -fstack-protector-all
[root@localhost ~]# systemd-analyze
Startup finished in 1.744s (kernel) + 11.345s (initrd) + 47.164s
(userspace) = 1min 255ms
# WITH -fstack-protector-all
[root@localhost ~]# systemd-analyze
Startup finished in 1.843s (kernel) + 12.262s (initrd) + 1min 3.480s
(userspace) = 1min 17.587s
Can you try -fstack-protector-strong?
Probably the right thing to do is to pick in order
-fstack-protector-strong, -fstack-protector, and nothing.
+1
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