search for: throughput

Hi everybody, I have several VMs running on Xenserver 6.5 I have 2 samba servers (1 DC & 1 Fileserver). They are both running Debian Linux 8.2 Jessie. I'm using the samba debian package (4.1.17) My VM has 8G RAM and 4 vCPU How can i test if the performances are quite good or not? with reading/writing Could I have better performance with the latest samba release? thanks Pierre --

...?.. File size set to 10485760 KB Record Size 128 KB Command line used: ./iozone -s 10G -r 128k -i0 -t 4 Output is in Kbytes/sec Time Resolution = 0.000001 seconds. Processor cache size set to 1024 Kbytes. Processor cache line size set to 32 bytes. File stride size set to 17 * record size. Throughput test with 4 processes Each process writes a 10485760 Kbyte file in 128 Kbyte records Children see throughput for 4 initial writers = 487376.67 KB/sec Parent sees throughput for 4 initial writers = 486184.67 KB/sec Min throughput per process = 121699.91 KB/sec Max throughput per pro...

Hi Andrea, So does this definition make sense for basic blocks with more than one instructions? E.g. how should one interpret a basic block with RThroughput of 2.3? On Fri, Jun 7, 2019 at 7:39 AM Andrea Di Biagio <andrea.dibiagio at gmail.com> wrote: > Hi Tom, > > Field 'Total Cycles' from the summary view simply reports the elapsed > number of cycles for the entire simulation. > > Rthroughput (from the "Instructi...

...enjoyed the interview with James and the bow tie lesson at the end. :) So anyway, I recently upgraded my home network to end-to-end GbE. My clients are Windows XP SP3 w/hot fixes, and my Samba server is 3.5.6 atop vanilla kernel.org Linux 3.2.6 and Debian 6.0.6. With FDX fast ethernet steady SMB throughput was ~8.5MB/s. FTP and HTTP throughput were ~11.5MB/s. With GbE steady SMB throughput is ~23MB/s, nearly a 3x improvement, making large file copies such as ISOs much speedier. However ProFTPd and Lighttpd throughput are both a steady ~48MB/s, just over double the SMB throughput. I've tweaked...

Hello, I have tried reading the documentation and googling for the answer but reviewing the online matches I end up more confused than before. My problem is apparently simple. I fit a glm model (2^k experiment), and then I would like to predict the response variable (Throughput) for unseen factor levels. When I try to predict I get the following error: > throughput.pred <- predict(throughput.fit,experiments,type="response") Error in model.frame.default(Terms, newdata, na.action = na.action, xlev = object$xlevels) : factor 'No_databases' has new...

Hi all, I used netperf to measure throughput between dom0 & domU. The throughput between dom0 -> domU was 256.00 Mb/sec domU -> dom0 was 401.15 Mb/sec. The throughput between dom0 & domU seems to be very asymmetry. To my surprise the throughput between domU -> dom0 is more. The va...

Hello, I have one replication (r=1 of the 2^k*r) of a 2^k experimental design in the context of performance analysis i.e. my response variables are Throughput and Response Time. I use the "aov" function and the results look ok: > str(throughput) 'data.frame': 286 obs. of 7 variables: $ Time : int 6 7 8 9 10 11 12 13 14 15 ... $ Throughput : int 42 44 33 41 43 40 37 40 42 37 ... $ No_databases : Factor w/ 2 levels...

Hello, When I try to use TukeyHSD in the following way it shows the confidence interval corresponding to the last factor only. > throughput.aov <- aov(Throughput~No_databases+Partitioning+No_middlewares+Queue_size,data=throughput) plot(TukeyHSD(throughput.aov)) # I expected here to see the confidence intervals for all factors but see only the last. OTOH this one works but then it is unreadable due to the long labels of combined ef...

I hope I'm in the right place for this question. I am in the process of creating a large scale production fileserver architecture for the purpose of serving very large files (~4.5GB) to a small number of clients (~200). My assumptions to this point have been that my throughput would be constrained by hardware and not software, but I would like some validation of this thinking. I am hoping to achieve throughput rates of ~200MB/s using whatever hardware needed to achieve this (FC on the disk side, possible infiniband or multiple 1Gb ethernet links for network side). CPU...

Hi, I am encountering a weird issue, where domU RX throughput (of traffic from another machine) is very low. But domU RX throughput from dom0 is fine, and dom0 RX from another machine is fine. iperf reported the following throughputs: dom0 <- outside -- 942Mbps domU <- dom0 -- 3467Mbps domU <- outside -- 87Mbps The NIC on the machine is 1GE. What...

Dear I am very new to tinc and would like to ask any advice regarding tinc's throughput. I have been using OpenVPN for several years and found tinc as a simpler/scaler VPN using TUN/TAP device. I have tried to use tinc on WindowsXP and measured throughput in contrast to OpenVPN. My test revealed that tinc is faster in PING response (almost half of OpenVPN). However, when I tested...

...link) and a private network (1 Gbps link). All netperf tests were run with defaults (w/o any extra options). Dom0 to Dom0 (local) TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to () port 0 AF_INET : demo Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 5859.30 DomU to DomU (local) TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to () port 0 AF_INET : demo Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes byte...

I have a backup spooling onto a DLT drive. Is there any tool that will let me monitor the data throughput on the device? -- Bowie

Hi All, I have gone through threads related to throughput issue in this list. Found few similar issue, but could not get the solution. So looking for some advice from group. I am trying to use the samba to access a USB disk connected to our evaluation board which has xtensa core running at 400 MHz. Samba 3.5.x is running on the board. We are getti...

Hi all, I used netperf to measure throughput between dom0 & domU. The throughput between dom0 -> domU was 256.00 Mb/sec domU -> dom0 was 401.15 Mb/sec. 1) Dom0 -> DomU: Recv Socket Size bytes Send Socket Size bytes Send Message Size bytes Elapsed Time Secs. Throughp...

Hi all, I used netperf to measure throughput between dom0 & domU. The throughput between dom0 -> domU was 256.00 Mb/sec domU -> dom0 was 401.15 Mb/sec. 1) Dom0 -> DomU: Recv Socket Size bytes Send Socket Size bytes Send Message Size bytes Elapsed Time Secs. Throughp...

...anything to do with the way the Samba variables are set on my Linux box? The "strange behavior" is that when I set both NICs to use Jumbo Frames [MTU=9014 on the Windows side (includes IP headers) , 9000 on the Linux side (doesn't include the headers], I am getting about half the throughput that I get when I set both NICs to use the standard MTU of 1514/1500. I see the same behavior even if I take the switch out of the system and connect the Windows XP and Linux machines directly to each other (crossover cable not required for computer-to-computer connection with these NICs -- and...

Hello all, I really appreciate how helpful the people in this list are. Would it be too much to ask to send a small script to have it peer-reviewed? to make sure I am not making blatant mistakes? The script takes an experiment.dat as input and generates system Throughput using ggplot2. It works now ... [sigh] but I have this nasty feeling that I might be doing something wrong :). Changing "samples" i.e. number of samples per group produces arbitrarily different results, I basically increased it (until 9) until there were no strongly deterministic periodic...

I'm trying to do an fsck on an ext3 partition but I'm seeing abysmally slow disk throughput; monitoring with "dstat" (like vmstat) shows ~1200-1500KB/s throughput to the disks. Even with 24hrs of fsck-ing I only get ~3% (still in pass1). The filesystem is ext3 running "e2fsck -C0 /dev/sda3" and about 3.7TB on an x86_64-based system with 4GB RAM. e2fsprogs is 1.41.9....

...etween two nodes directly reports around 940Mbit/s. The CPUs are Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz, the hosts are running debian wheezy (kernel 3.2.54-2), the aesni module is loaded. OpenSSL is at 1.0.1e. On tinc 1.0, with cipher aes-128-cbc and digest sha1, I managed to get around 900Mbit/s throughput (iperf, simplex, both tinc daemons at 90% CPU utilisation). Switching to a null-cipher came up with only marginally better throughput. Note, this is from memory, can't find my notes unfortunately. Reading about tinc 1.1, specifically the use of a GCM cipher suite to reduce the cost of HMAC, we...