On 06/12/11 20.10, Fabian Wenk wrote:
Hello AdnanOn 04.12.2011 18:18, Adnan Pasic wrote:I can't really tell you what lookbusy does, as it's not a programme coded by me, but found on the internet to fulfill its duties ;)Or it does not properly as you would need it.Also, the website where I downloaded it from doesn't say anything on how the programme is really working, and if it's possible to somehow upgrade it with for the purpose of, e.g. filling zeros.Google pointed me to [1], is this the one you are using? If yes, you could ask the developer, if he could adjust it for your needs (eg. filling the memory with random data, or even changing it during runtime), or ask some other developer which knows about C, if he could do it for you. [1] http://www.devin.com/lookbusy/
it's a quite simple program, less than 1000 lines of code. The answer is yes, btw, it does fill the memory with "random" data during initialization:
for (p = mem_stir_buffer; p < mem_stir_buffer + sz; p++) {
*p = (char)((uintptr_t)p & 0xff);
}
and keep using it:
while (1) {
const size_t copysz = pagesize;
#ifdef HAVE_MEMMOVE
memmove(dp, sp, copysz);
#else
memcpy(dp, sp, copysz);
#endif
sp += pagesize * 1;
dp += pagesize * 5;
I think that the problem is not related to KSM but to virtio
balloons: it is possible that the memory allocated by the lookbusy
program is not freed by the guest os (actually, by kvm). I never
tried, but I would give a try to something like "virsh setmem
102400" and see what happen...
.a. -- Antonio Messina I.T. Specialist email: amess...@ictp.it | The Abdus Salam ICTP phone: +39 040-2240-691 | Strada Costiera, 11 fax: +39 040-2240-7691 | 34151 Trieste, Italy
smime.p7s
Description: S/MIME Cryptographic Signature
_______________________________________________ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
