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Hello, I read an interesting article on 2cpu.com that talks about the performance differences between a P4 processor with Hyperthreading(HT) enabled and disabled. http://www.2cpu.com/articles/ht_explored/index.html The bottom line of the article is that processor intensive applications greatly benefit from HT being enabled, but memory intens...

Hello. I'm looking for assistance or pointers for the following problem. OS: RHAS2.1 enterprise16 HW: HP proliant 2CPU 6GB RAM, internal RAID1 + RAID5(4 x 10K 72GB) When we run any kind of process (especially tar for some reason) that creates heavy disk activity the machine becomes Very Slow, (e.g. takes 30-45 seconds to get a reply from ls at the console, or a minute to log in.) I experimented with data=journal...

Summary: Changeset 10173 - 64bit UP and SMP guests boot cleanly - 32bit UP guests boot clean and 32bit SMP guests still fail to boot (see failure.7) - 32bit UP guests lockup under load with "ata1: command 0x25 timeout" (see failure.4) - 64bit SMP 2 CPU guests lockup under load with "ata1: command 0x25 timeout" (see failure.2) - 32bit UP guest crashed on user load test

I downloaded and ran the live CD from http://wiki.xensource.com/xenwiki/LiveCD which worked fine on a Lenovo, Intel Core 2CPU 6300@1.86 GHz with 2GB of ram and 80 GB disk space. The next step was to recreate a working version on this machine, using full virtualization of some test OS''s, one goal would be Microsoft Server 20xx and being able to view the console of the guest machine. I have kernel 2.6.26-2-xen...

...p/shift compared to Jessie. On Buster I encountered this error: https://serverfault.com/questions/ 789532/winbindd-gss-init-sec-context-failed-with-unspecified-gss-failure Thus, I set "winbind rpc only = yes". May this info serve you as a hints. Current config: Debian 10 (Buster), 2CPU, 4GB RAM, 64bit winbind - 4.9.5+dfsg-5 samba - 4.9.5+dfsg-5 Connection information for squid (4.6): ??????? Number of clients accessing cache:????? 443 Additional info is here:? https://pastebin.com/U5idtgsv Thank you for hints. Zbynek

I'm planning on building a media file server, from which I can host media files to several set top boxes connect to my television. My plan is to have a huge collection of music and many emulated games, and movies. The idea is to just have a stripped down file server with a large and hard drive, fast network connect. So from any system in my house I could have access to all of my media.

...th windows pv driver. The test case is common scenario test(one test case of WHQL test), this test case will hibernate the vm for many times, and doing some IO operations for devices. The windows guest is Srv2008 R2 x64. Following is my test result HVM guest with pv driver, machines 1cpu and 2cpu 4cpu AMD pass pass Intel pass BSOD It seems the test result is connected with the cpu type and cpu number. AMD environment passed this test case, but Intel environment failed with 4cpus. The BSOD always caused by windows kernel file instead of windows pv driver binaries. And i failed to f...

All, We're currently running Oracle 9i on a RHEL AS 2.1 installation. We need to upgrade to Oracle 10g, and I've half-way convinced my boss to upgrade to RHEL 4 (we're still discussing AS vs ES, since we're running 2 HT processors...). Anyway, I want to upgrade because of EOL issues whenever RHEL 5 comes out, but before he okays me wiping the server and installing 4, he

What is the maximum number of AMD64 cores supported by CentOS 4? The RedHat page https://www.redhat.com/software/rhel/configuration/ suggests that RHEL 4 AS supports up to 8 AMD64/EM64T logical cpus. Is that accurate and does it apply to CentOS 4? I see a few vendors offering boxes with 8 (dual core) CPU sockets. IWILL for one. Thanks, Tony Schreiner Boston College

Hi All, My group is looking for any suggestions on what to purchase to achieve the most powerful number crunching system that $50k can buy. The main application that will be used is R so input on what hardware benefits R most will be appreciated. The requirements are that it be a single standalone server (i.e. not a cluster solution), and it that must be able to run unix/linux. If

...rds" 3. BUG 663: 64bit SMP guest report these messages while running: "(XEN) spurious IRQ irq got=-1" 4. BUG 662: 64bit SMP guest report this message in ltp pth_str01/2/3: "(XEN) <vlapic_accept_irq>level trig mode repeatedly for vector 252" 5. BUG 678: 64bit 2CPU SMP guest failed several ltp tests with SEGVs or GPF "sshd[23654] general protection rip:2a9555d426 rsp:7fbfffd000 error 0" The XI patch can be enabled or disabled at build time and includes some performance statistics that can be examined whether or not it''s enabled. This...

...the current fsync had already completed. Those ordered extents whose csum was being calculated didn''t belong to the current fsync, we can ignore them. By this patch, the performance fluctuating doesn''t happen, and the average performance grows up by ~2%. Test Environment: CPU: 2CPU * 2Cores Memory: 4GB Partition: 20GB(HDD) Test Command: # sysbench --num-threads=8 --test=fileio --file-num=1 \ > --file-total-size=8G --file-block-size=32768 \ > --file-io-mode=sync --file-fsync-freq=100 \ > --file-fsync-end=no --max-requests=10000 \ > --file-test-mode=rndwr run...

Hi all, My current conf splits 188 clients execution in one hour, and puppet runs as a cron job. My server (2cpu 2 GB RAM) runs with mongrel (with 8 puppetmasterd) and this conf works fine. We''d like puppet to run clients all at same time (force a change, i.e.), so we''re testing several things. (Previous conf do not support massive execution). First and most important, is moving our ser...

...what apply has to do in this case is loop over the 900,000 SK> cases and do a 'sum' over three elements each time. In this case the overhead SK> of calling an S+ function totally swamps the numeric operations. SK> SK> Doing this on smaller datasets (300x30x3) on my machine (2CPU, 3GHz Xeon SK> running Windows 2000 and S-Plus 6.1) shows an overhead of about 140 SK> microseconds per call to sum, so I would expect it to take 100*1e-6*9e5=90 seconds. SK> SK> The thing is, it is worse than this. If I do a case with 900x90x3 it takes 300 usec per 'sum'. S...

Anyone using the IBM x445 machine as a xen host? Mike _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

...IRQ irq got=-1" >>>>>> 4. BUG 662: 64bit SMP guest report this message in ltp pth_str01/2/3: >>>>>> "(XEN) <vlapic_accept_irq>level trig mode repeatedly for >>>>>> vector 252" >>>>>> 5. BUG 678: 64bit 2CPU SMP guest failed several ltp tests with >>>>>> SEGVs or GPF >>>>>> "sshd[23654] general protection rip:2a9555d426 rsp:7fbfffd000 >>>>>> error 0" >>>>>> >>>>>> The XI patch can be enabled or dis...

A character device for accessing (in user-space) pages that have been granted by other domains. Signed-off-by: Derek Murray <Derek.Murray@cl.cam.ac.uk> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel